1.If x² − 2xy = 84 and x − y = −10, then the value of y is:
A. 2
B. 1
C. 4
D. 3
Solutions
Given:
x2 – 2xy = 84
x – y = -10
Formula Used:
(a – b)2 = a2 + b2 – 2ab
Solution:
As given
x – y = -10
Squaring both sides, we get
x² + y² – 2xy = 100
84 + y² = 100
y = 4
2. What is the heat generated (in J) in a heating element of resistance 900 Ω when a current of 0.3 A passes through it for 10 seconds?
A. 2700
B. 810
C. 405
D. 1350
Solutions
Thus, the heat generated is 810 joules.
Information Booster:
- Joule’s law of heating: It states that the heat produced in a conductor is directly proportional to the square of the current, the resistance, and the time.
- Heat (H): Measured in joules (J), it indicates the amount of energy released in the form of heat when current flows through a resistance.
3. In a ∆ABC, the median BE intersects AC at E. If BG = 12 cm, where G is the centroid, then BE is equal to:
A. 16 cm
B. 18 cm
C. 15 cm
D. 13 cm
Solutions
4. Find the HCF of 4.08 and 6.63.
A. 0.50
B. 0.52
C. 0.51
D. 0.53
Solutions
Given:
The HCF of 4.08 and 6.63
Solution:
The HCF of 4.08 and 6.63
408 = 2 × 2 × 2 × 51
663 = 13 × 51
The HCF of 408 and 663 is 51.
Thus, the HCF of 4.08 and 6.63 is 0.51.
∴ The correct answer is 0.51.
5. A saree bought for ₹ 500 is marked at 16% profit and later on sold at a sales discount of x% on the marked price. If the selling price of the saree is ₹493, find the value of x.
A. 18
B. 16
C. 17
D. 15
Solutions
6. Isobars are atoms of different chemical elements that have __________.
A. Same atomic number but different mass number
B. Same mass number but different atomic number
C. Same mass number and same atomic number
D. Different mass number and different atomic number
Solutions
The correct answer is (b) Same mass number but different atomic number.
7. Which disease is characterized by abnormal cell growth and the potential to invade or spread to other parts of the body?
A. Malaria
B. Arthritis
C. Cancer
D. Diabetes mellitus
Solutions
Cancer is a disease characterized by the abnormal and uncontrolled growth of cells. These cells have the potential to invade nearby tissues and can also spread to other parts of the body through a process called metastasis. Cancer can affect various organs and tissues in the body, and there are numerous types of cancer, including breast cancer, lung cancer, prostate cancer, and leukemia, among others.
· Malaria is a parasitic infection transmitted through the bite of infected mosquitoes and is not related to abnormal cell growth.
· Arthritis refers to inflammation of the joints
· Diabetes mellitus is a metabolic disorder characterized by high blood sugar levels.
8. The smallest blood vessels which are one-cell thick, are called ______.
A. Vena cava
B. Arteries
C. Veins
D. Capillaries
Solutions
The correct answer is (d) Capillaries.
9. The number of neutrons in an atom is equal to the:
A. Mass number – atomic number
B. Atomic number
C. Number of electrons
D. Mass number
Solutions
Atomic Number: number of protons present in the nucleus.
Mass number: Total number of protons and neutrons present in a nucleus.
A = Z + N, Where A = mass number
Z = Atomic number = number of protons
N = neutron number.
Thus, it is clear that the no. of neutrons is equal to the difference between a mass number and an atomic number. i.e., Number of neutrons = Mass number – Atomic number.
10. Which country has provided the Igla-S Man Portable Air Defence Systems (MANPADS) to the Indian Army?
A. China
B. United States
C. Russia
D. France
Solutions
Correct answer is (c)
The Indian Army has improved its Very Short Range Air Defence (VSHORAD) capabilities by acquiring Igla-S Man Portable Air Defence Systems (MANPADS) from Russia. This procurement, part of a bigger contract for 120 launchers and 400 missiles, represents a considerable upgrade from outmoded equipment.
Capabilities Of Igla-S
The Igla-S system, which consists of the 9M342 missile, 9P522 launching mechanism, 9V866-2 mobile test station, and 9F719-2 test set, provides a versatile and comprehensive air defence solution.
11. Three statements are given followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
I. All apples are pineapples.
II. Some apples are mangoes.
III. No mango is a grape.
Conclusions:
I. Some pineapples are not grapes.
II. No pineapple is a grape.
III. Some apples are not grapes.
A. Only conclusions I and III follow
B. Only conclusions II and III follow
C. Only conclusions I and II follow
D. All conclusions follow
Solutions
I. Some pineapples are not grapes. (True, according to diagram.)
II. No pineapple is a grape. (Falls, according to diagram.)
III. Some apples are not grapes. (True, according to diagram.)
Correct answer (a) Only conclusions I and III follow.
12. Read the given statement(s) and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statement(s).
Statements:
I. Some ceilings are beds.
II. No bed is an apple.
III. All dogs are beds.
Conclusions:
I. Some ceilings being dogs is a possibility.
II. No dog is an apple.
III. All beds are dogs.
IV. No ceiling is an apple.
A. Only Conclusions I and II follow
B. Only Conclusion I follows
C. Only Conclusions II and III follow
D. Only Conclusions I, II and IV follow
Solutions
I. Some ceilings being dogs is a possibility. (True, there is no relation is given between them, so can say that in possibility only)
II. No dog is an apple. (True, all dogs are beds and bed is coverage of dogs, and no beds are apple is given so this is true )
III. All beds are dogs. (False, can not say in definite because this is not given)
IV. No ceiling is an apple. (False, some ceilings are not apples which is comes in beds but we have no information about remaining ceilings so we cannot say this for whole ceilings)
Only (I)and (II) is true.
13. Select the option that is related to the third word in the same way as the second word is related to the first word.
Bicycle: Pedal:: Car:?
A. Shovel
B. Door
C. Hammer
D. Wheel
Solutions
Bicycle: Pedal: A pedal is a part of a bicycle that you use to make it move.
Option (a) Shovel: A shovel is a tool used for digging or moving materials, but it is not a part of a car and has no direct connection to how a car operates or moves.
Option (b) Door: A door is a part of a car that allows entry and exit, but it does not play a role in making the car move. While essential for functionality, it doesn’t have the same role as a pedal in a bicycle.
Option (c) Hammer: A hammer is a tool used for driving nails or breaking objects. Like the shovel, it is not a part of a car and has no role in the operation or movement of a car.
Option (d) Wheel: A wheel is a crucial part of a car that, like the pedal on a bicycle, is directly involved in making the car move. The wheels are what the car rides on, and they rotate to allow the car to move forward or backward.
Conclusion:
The correct analogy is that the wheel on a car plays a role similar to the pedal on a bicycle—they both are essential for movement.
Correct answer is (d) Wheel.
14. The apparent weight of a person in a lift which is moving down with uniform acceleration is _______.
A. greater than the weight when the person is stationary
B. twice the weight when the person is stationary
C. less than the weight when the person is stationary
D. same as the weight when the person is stationary
Solutions
Information Booster:
- Apparent weight: The normal force exerted by the surface on the object/person, which varies depending on the motion of the lift.
- Uniform acceleration: A constant acceleration, either upward or downward, which affects the apparent weight.
- If the lift accelerates downward: Apparent weight decreases.
- If the lift accelerates upward: Apparent weight increases.
15. What is the general formula of alkenes?
A. CnH2n
B. CnH2n+2
C. CnH2n-2
D. CnH2n-1
Solutions
The correct answer is (a) CₙH₂ₙ.
- The general formula for alkenes is CₙH₂ₙ, where “n” represents the number of carbon atoms in the molecule.
- Alkenes are hydrocarbons that contain at least one carbon-carbon double bond. This double bond is what distinguishes alkenes from alkanes, which have only single bonds.
- For example:
- Ethene (C₂H₄) is the simplest alkene with n = 2.
- Propene (C₃H₆) has n = 3.
Information Booster:
- Alkanes: Alkanes are saturated hydrocarbons that contain only single bonds between carbon atoms. The general formula for alkanes is CₙH₂ₙ₊₂. Alkanes are relatively unreactive and are commonly found in natural gas and petroleum. They are used as fuels and solvents. Alkanes are also known as paraffins.
- Example of an Alkane: Methane (CH₄) is the simplest alkane and is the primary component of natural gas.
- Alkenes: Alkenes are unsaturated hydrocarbons that contain at least one carbon-carbon double bond. The general formula for alkenes is CₙH₂ₙ. The presence of the double bond makes alkenes more reactive than alkanes, and they can participate in addition reactions. Alkenes are widely used in the chemical industry to produce polymers, alcohols, and other important chemicals. They also exhibit geometric isomerism due to the restricted rotation around the double bond.
- Example of an Alkene: Ethene (C₂H₄) is the simplest alkene and is used as a starting material in the production of polyethylene, a common plastic.
- Alkynes: Alkynes are another class of unsaturated hydrocarbons, but they contain at least one carbon-carbon triple bond. The general formula for alkynes is CₙH₂ₙ₋₂. The triple bond gives alkynes unique chemical properties, including increased reactivity and the ability to participate in various types of chemical reactions, such as hydrogenation and polymerization. Alkynes are used in organic synthesis and in the production of synthetic materials.
- Example of an Alkyne: Ethyne (C₂H₂), commonly known as acetylene, is used as a fuel in oxyacetylene welding and as a precursor in the synthesis of various organic compounds.
16. Where was the ‘Yoga Mahotsav’ held to mark the countdown to the International Day of Yoga?
A. Pune, Maharashtra
B. New Delhi, Delhi
C. Bengaluru, Karnataka
D. Chennai, Tamil Nadu
Solutions
Correct answer is (a)
The ‘Yoga Mahotsav’ was held in Pune, Maharashtra, to mark the 75-day countdown to the International Day of Yoga. Organized by the Morarji Desai National Institute of Yoga and the National Institute of Naturopathy, Ministry of Ayush, the event witnessed the overwhelming participation of thousands of people. The participants engaged in the practice of the Common Yoga Protocol (CYP) starting at 6.00 AM on April 7th, showcasing the growing popularity of Yoga.
17. The study of Earth’s structure and the rocks that make up the Earth is called
A. Glaciology
B. Geology
C. Hydrology
D. Geomorphology
Solutions
The correct answer is (b) Geology.
- Geology is the scientific study of the Earth’s structure, the rocks that make up the Earth, and the processes that have shaped the Earth’s surface over time.
- It involves the examination of minerals, rock formations, and Earth’s history, including volcanic activity, mountain building, and tectonic plate movement.
- Geologists also study how Earth’s materials and structures have evolved, including the formation of landforms, and the processes of erosion and sedimentation.
| Field | Description |
|---|---|
| Glaciology | The study of glaciers and ice, and how they shape Earth’s surface. |
| Hydrology | The study of water, its distribution, and movement on and below Earth’s surface. |
| Geomorphology | The study of Earth’s landforms and the processes that create them, such as erosion, deposition, and plate tectonics. |
18. Under the Mughals _____________ was administered as a department of the military
A. Diwan-i-insha
B. Diwan-i-Wazarat
C. Diwan-i-Arz
D. Diwan-i-Barid
Solutions
The correct answer is (c) Diwan-i-Arz.
· Diwan-i-Arz was the department of the military administration in the Mughal Empire. It was responsible for the recruitment, organization, and management of the Mughal army. The Diwan-i-Arz dealt with matters such as the appointment of military officers, their salaries, promotions, and other administrative functions related to the military.
· Diwan-i-insha was the department of imperial correspondence and royal communications, dealing with official letters and dispatches.
· Diwan-i-Wazarat was the department of finance and revenue administration.
· Diwan-i-Barid was the department of post and communication, responsible for the postal system and relaying official messages.
19. The rock that results from the Solidification of molten lava from a volcano is an example of which of the following
A. Granite Rock
B. Igneous Rock
C. Basalt Rock
D. Magnetite
Solutions
The correct answer is (b) Igneous Rock.
- Igneous rocks are formed from the cooling and solidification of molten lava or magma.
- When lava from a volcano cools down on the Earth’s surface, it solidifies and forms igneous rocks.
- There are two main types of igneous rocks: extrusive (when lava cools on the surface, such as basalt) and intrusive (when magma cools beneath the surface, such as granite).
- Basalt, for example, is a common extrusive igneous rock formed from lava that cools quickly on the Earth’s surface.
Information Booster:
- Igneous Rock: These rocks are known as “primary rocks” because they are the first solid forms of rocks.
- Granite: An example of intrusive igneous rock, which cools slowly beneath the Earth’s surface.
- Basalt: A type of extrusive igneous rock formed by the rapid cooling of lava at the surface.
- Formation: Igneous rocks are classified based on their texture and mineral composition, which is determined by the rate of cooling.
20. Select the Venn diagram that best illustrates the relationship between the following classes.
Animals, Dogs, Pets
A.
B. 
C. 
D. 
Solutions
21. If “he loves coffee“ is coded as 123; “coffee has caffeine” is coded as 245; “he coffee caffeine” is coded as 125 and “ caffeine is bad” is coded as 567 then “he” is represented by:
A. 2
B. 3
C. 4
D. 1
Solutions
Given:
1. “he loves coffee “is coded as 123;
2. “coffee has caffeine” is coded as 245;
3. “he coffee caffeine” is coded as 125
4. “caffeine is bad” is coded as 567
In the 1st and 3rd
“he loves coffee” is coded as 123
“he coffee caffeine” is coded as 125
We see:
“he” and “coffee” are in both sentences, so the common codes between 123 and 125 are 1 and 2.
Since “coffee” also appears in “coffee has caffeine” coded as 245, “coffee” must be either 2, 4, or 5.
From the codes:
If “coffee” was 2, the remaining would be “he” is either 1 or 3.
If “coffee” was 4 or 5, it would conflict with the previous identifications.
Since “he” is in “he loves coffee” (123) and “he coffee caffeine” (125), the remaining consistent code identifying with “he” without conflict is:
“he” = 1
Thus, the answer is (d) 1.
22. Simplify the following.
Cot 13° cot27° cot45° cot63° cot77° = ?
A. 1
B. √3
C. 2
D. √2
Solutions
23. Which of the following is not a characteristic of carbon compounds?
A. They are mostly organic compounds.
B. They are mostly covalent compounds.
C. They have low melting and boiling points.
D. They are poor conductors of electricity.
Solutions
The answer is (c) They have low melting and boiling points.
Carbon compounds are mostly organic compounds, which means that they are made up of carbon and hydrogen atoms. They are also mostly covalent compounds, which means that the bonds between the atoms are covalent bonds. Covalent bonds are strong bonds, so carbon compounds tend to have high melting and boiling points.
However, some carbon compounds, such as methane (CH4), do have low melting and boiling points. This is because methane is a simple molecule with only one carbon atom and four hydrogen atoms. The bonds between the atoms in methane are not as strong as the bonds between the atoms in more complex carbon compounds.
Therefore, the statement that carbon compounds have low melting and boiling points is not a characteristic of all carbon compounds. The other options are all characteristics of carbon compounds, so the answer is (c).
24. What is the greatest three-digit number which when divided by 4, 8 and 9, leaves no remainder?
A. 924
B. 963
C. 932
D. 936
Solutions
LCM of 4, 8 and 9 = 72
Now three digit greatest number = 999
So, When we divide 999 by 72 then remainder = 63
So, 999-63 = 936 is the greatest number .
25. Who is known as the ‘Father of Green Revolution’?
A. G. Paul
B. Norman Borlaug
C. Van Neil
D. Dr. Mithchell
Solutions
The correct answer is (b) Norman Borlaug.
- Norman Borlaug is recognized as the “Father of the Green Revolution” for his pioneering work in developing high-yielding varieties of wheat and introducing modern agricultural practices.
- His efforts in the 1960s, particularly in countries like Mexico, India, and Pakistan, helped to drastically increase food production and prevent widespread famine.
- Borlaug’s work led to significant advancements in agricultural productivity, making it possible to feed large populations and contributing to global food security.
- For his contributions, he was awarded the Nobel Peace Prize in 1970.
Information Booster:
- Green Revolution: Refers to the period during the mid-20th century when new agricultural technologies, including high-yield crop varieties, synthetic fertilizers, and irrigation techniques, were introduced to significantly boost food production.
- Impact: The Green Revolution transformed agriculture in many developing nations, especially in Asia and Latin America, helping to prevent food shortages and hunger.
- Criticism: While it increased food production, the Green Revolution also faced criticism for its environmental impacts, including soil degradation and the overuse of chemical inputs.
26. Select the set of classes the relationship among which is the best illustrated by the following venn diagram.
A. Dancing, singing, cooking
B. Skill, talent, dancing
C. Skill, dancing, singing
D. Run, skill, food
Solutions
dancing and singing are two different skills.
27. Which of the following numbers will replace the question mark (?) in the given series? 8, 16, 7, 14, 5, 10, 1, 2,?
A. -7
B. 4
C. 7
D. 9
Solutions
Given: 8, 16, 7, 14, 5, 10, 1, 2,?
The logic mentioned is ×2, -9, meaning we alternate between multiplying by 2 and subtracting 9. Let’s apply this step by step:
8 ×2 → 16 (Multiply by 2)
16 – 9 → 7 (Subtract 9)
7 ×2 → 14 (Multiply by 2)
14 – 9 → 5 (Subtract 9)
5 ×2 → 10 (Multiply by 2)
10 – 9 → 1 (Subtract 9)
1 ×2 → 2 (Multiply by 2)
2 → ? (Now subtract 9)
Following the pattern:
2 – 9 = -7
Correct Answer: (a) -7
28. Which of the following statements is correct?
A. Water is a cyclic resource.
B. Water has only one state.
C. Water is a non-renewable resource.
D. Water is a biotic resource.
Solutions
The correct answer is (a) Water is a cyclic resource.
- Water is considered a cyclic resource because it undergoes a continuous process of circulation through the hydrological cycle. This cycle includes processes such as evaporation, condensation, precipitation, and runoff, which ensures the renewal and redistribution of water on Earth.
- Water exists in all three states: solid (ice), liquid (water), and gas (water vapor), debunking the statement that water has only one state.
- Water is a renewable resource, as it naturally replenishes through the hydrological cycle, although it can become scarce in some regions due to overuse or pollution.
- Water is classified as an abiotic resource, meaning it is a non-living natural resource, as opposed to biotic resources, which are derived from living organisms.
29. The following question below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer.
On which day of the same week is Rudra’s exam scheduled, if it is given that Monday being the first day of the week?
I. Monika correctly remembers that Rudra’s exam is scheduled on a day after Tuesday, but before Thursday of the same week.
II. Monika’s brother correctly remembers that Rudra’s exam is scheduled on the third day of the week.
A. The data in both the statements I and II together are necessary to answer the question
B. The data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
C. The data in either in statement I alone or in statement II alone are sufficient to answer the question.
D. The data in both the statements I and II together are not sufficient to answer the question.
Solutions
Statement I:
Monika correctly remembers that Rudra’s exam is scheduled after Tuesday but before Thursday.
This means the exam is on Wednesday.
Statement II:
Monika’s brother correctly remembers that Rudra’s exam is scheduled on the third day of the week.
If Monday is the first day, then the third day of the week is Wednesday.
Conclusion:
Both statements individually point to Wednesday as the exam day. Therefore, either statement alone is sufficient to answer the question.
Correct Answer:(C) – The data in either statement I alone or statement II alone are sufficient to answer the question.
30. The average sum scored by a batsman in his 20 innings is 42. If he got out after scoring 84 runs in the next inning, then what will be his new average?
A. 45
B. 44
C. 46
D. 47
Solutions
31. Three solid metallic spheres of radii 1 cm,6 cm and 8 cm, respectively, are melted and recast into a single solid sphere. The radius of the new sphere so formed is:
A. 9.0 cm
B. 5.9 cm
C. 3.7 cm
D. 8.5 cm
Solutions
32. Rahul is 9 m to the south of Priya. Priya is 5 m to the east of Harish. Harish is 4 m to the north of Bhavna. Lakshmi is 3 m west of Bhavna. Deepak is 7 m south of Lakshmi. Gaurav is 8 m east of Deepak. If Vivek is 5 m to the west of Rahul, then what is the distance between Bhavna and Vivek?
A. 7 m
B. 8 m
C. 5 m
D. 10 m
Solutions
From the given information following path diagram can be drawn –
33. If the simple interest for 5 years is equal to 25% of the principal, then the interest will be equal to the principal after years.
A. 20
B. 30
C. 25
D. 22
Solutions
34. Which of the following groups of letters when sequentially placed from left to right will complete the given series?
jklmnojklmnoj _ lmnojk_m_ojklmn_
A. jklm
B. klno
C. knlo
D. knol
Solutions
Given: jklmnojklmnoj _ lmnojk_m_ojklmn_
Logic: The repeating pattern in the series is “jklmno”.
From option (a) jklm
jklmno/jklmno/j J lmno/jk k m l o/jklmn m – The pattern is not followed.
option (b) klno
jklmno/jklmno/j k lmno/jk l m n o/jklmn o – The pattern is followed.
option (c) knlo
jklmno/jklmno/j k lmno/jk n m l o/jklmn o – The pattern is not followed.
option (d) knol
jklmno/jklmno/j k lmno/jk n m o o/jklmn l – The pattern is not followed.
Correct answer is (B) klno.
35. Which one of the following is not correctly matched?
A. A
B. B
C. C
D. D
Solutions
The correct answer is (d) Light year – Unit of measuring time.
· Light-year is not a unit of measuring time; it is a unit of measuring astronomical distances. A light year is the distance that light travels in one year in a vacuum. It is commonly used in astronomy to represent vast distances between celestial objects. The other options are correctly matched:
· Knot – Unit to Measure speed of ship: A knot is a unit of speed used in navigation and maritime contexts. It represents one nautical mile per hour.
· Nautical mile – Unit of distance used in navigation: A nautical mile is a unit of distance used primarily in maritime and aviation navigation. It is defined as one minute of latitude along any meridian.
· Angstrom – Unit of length: The angstrom (symbol: Å) is a unit of length commonly used to measure atomic and molecular scales. It is equal to 0.1 nanometers or 10-10 meters.
36. Find the total surface area of a cube whose volume is 343 m³.
A. 186 m²
B. 294 m²
C. 196 m²
D. 210 m²
Solutions
37. In a certain code language-
‘I × J’ means ‘I is the mother of J’
I + J means ‘I is the husband of J’
‘I ÷ J’ means ‘I is the sister of J’
‘I – J’ means ‘I is the brother of J’
How is Q related to Z in the expression ‘Q ÷ X + Y × Z’?
A. Father’s sister
B. Wife’s sister
C. Daughter
D. Wife
Solutions
Given:
| Symbols | × | + | ÷ | – |
| Relations | mother | husband | sister | brother |
From the above family diagram Q is the father’s sister of Z.
Correct answer is (a) Father’s sister
38. The unit of which physical quantity is not Pascal?
A. Moment of inertia
B. Pressure
C. Stress
D. Young’s modulus
Solutions
The correct answer is (a) Moment of inertia.
39. Aarti can type 85 pages in 10 hours. Aarti and Bina together can type 500 pages in 40 hours. How much time will Bina take to type 40 pages?
A. 10 hours
B. 15 hours
C. 14 hours
D. 12 hours
Solutions
40. Select the option that is related to the third word in the same way as the second word is related to the first word.
(The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.)
Triangle : 3 :: Hexagon : ?
A. 6
B. 8
C. 4
D. 5
Solutions
A triangle has 3 sides, and a hexagon has 6 sides. Therefore, the number 6 is related to a hexagon in the same way 3 is related to a triangle.
Correct answer is (a) 6.
41. In which of the following industries is mica used as a raw material-
A. Iron and steel
B. Toys
C Glass and pottery
D. Electrical
Solutions
Mica is used as a raw material in the electrical industry because it is a good insulator. It is also used in the manufacture of capacitors, resistors, and other electronic components. Mica is also used in the manufacture of paints, plastics, and cosmetics.
In the electrical industry, mica is used to make insulation for wires and cables. It is also used to make capacitors, which are devices that store electrical energy. Mica is also used to make resistors, which are devices that control the flow of electricity.
Mica – Mica is a mineral that is made up of a series of plates or leaves. It splits easily into thin sheets. These sheets can be so thin that a thousand can be layered into a mica sheet a few centimeters high. Mica can be clear, black, green, red-yellow, or brown.
42. If the volume of one brick is 0.0014 m3, then how many bricks will be required to construct a wall of length 14 m, breadth 0.125 m and height 5 m ?
A. 5250
B. 3250
C. 6250
D. 4250
Solutions
43. The secretion of droplets on the leaves of plants from the pores of plants is called –
A. Guttation
B. Photolysis
C. Photophosphorylation
D. Quenching
Solutions
The correct answer is (A) Guttation.
44. Simplify the given expression.
A. 21
B. 15
C. 88
D. 125
Solutions
45. Rings of ______ are present in the throat to ensure that the air passage does NOT collapse.
A. Bone
B. Tendon
C. Ligament
D. Cartilage
Solutions
The correct answer is (d) Cartilage.
46. Which of the following instruments made in Miraj has been awarded the GI tag?
A. Violin and Guitar
B. Flute and Harmonium
C. Tabla and Mridangam
D. Sitar and Tanpura
Solutions
Correct answer is (d)
The Sitar and Tanpura made in ‘Miraj’, a small town in Sangli district of Maharashtra, has been given the Geographical Indication (GI) tag.
The Miraj Musical Instruments Cluster functions as the apex body for both the sitar and tanpura makers in the town. More than 450 craftsmen are engaged in the production of musical instruments, including sitars and tanpuras, under the umbrella of this cluster.
The GI tag recognition is a significant achievement for the Miraj-based musical instrument makers, as it will help to promote and protect the uniqueness of their products, potentially leading to increased demand and commercial opportunities both within India and globally.
47. The cube of the difference between two given natural numbers is 1728, while the product of these two given numbers is 108. Find the sum of the cubes of these two given numbers.
A. 6048
B. 5616
C. 6024
D. 5832
Solutions
48. Which of the following is a renewable resource?
A. Coal
B. Natural gas
C. Wind energy
D. Nuclear energy
Solutions
The correct answer is (c) Wind energy.
· Wind energy is a renewable resource, meaning it is derived from natural processes that are continuously replenished. Wind turbines convert the kinetic energy of wind into electrical energy, providing a clean and sustainable source of power.
· Unlike fossil fuels, wind energy does not deplete finite resources and produces no direct greenhouse gas emissions or air pollutants.
· Wind energy is increasingly being adopted worldwide as a key component of efforts to transition to a low-carbon energy system.
Information Booster: Offshore Wind Farms:
· Offshore wind farms are wind turbines installed in bodies of water, typically in the ocean, where wind speeds are higher and more consistent, allowing for greater energy generation.
Wind Energy Capacity:
· Countries like China, the United States, and Germany are leading in wind energy capacity, with significant investments in both onshore and offshore wind projects.
Intermittency Challenge:
· One challenge with wind energy is its intermittency, as wind speeds can vary. Energy storage solutions and grid management are essential for integrating wind power into the energy mix.
49. A and B enter into a partnership by making investment in the ratio 1 :2, 5% of the total profit goes to charity. If B’s share is Rs 760, then total profit is –
A. Rs 2400
B. Rs 1800
C. Rs 1200
D. Rs. 1560
Solutions
50. Select the option that indicates the correct arrangement of the given words in the order in which they appear in an English dictionary.
1. Languish
2. Larder
3. Lantern
4. Languid
5. Lapse
A. 14523
B. 15432
C. 34521
D. 41352
Solutions
Now we can determine the order:
Languid (4): Langui (shorter prefix, “d” comes before “h”)
Languish (1): Languish
Lapse (5): Lapse (comes after “Langui” and “Languish” because “p” comes after “g” and “u”)
Larder (2): Larder (comes before “Lapse” because “d” comes before “p”)
Lantern (3): Lantern (comes after “Larder” because “t” comes after “d”)
Final Order:
Languid (4)
Languish (1)
Lapse (5)
Larder (2)
Lantern (3)
So, the correct order is 41352.
51. Which of the following is the correct definition of sound?
A. The transmission of light waves
B. The transmission of electromagnetic waves
C. The transmission of mechanical waves through a medium
D. The transmission of radio waves
Solutions
The correct answer is (c) The transmission of mechanical waves through a medium.
52. The wave length extension of visible light is-
A. Between 200–900 nm
B. Between 250–850 nm
C. Between 300–800 nm
D. Between 390–780 nm
Solutions
The wavelength extension of visible light is generally considered to be between 390–780 nanometers (nm).
Visible light is a form of electromagnetic radiation that is visible to the human eye. It is made up of a spectrum of wavelengths, with each wavelength corresponding to a different color. The shortest wavelengths of visible light are violet, while the longest wavelengths are red. In between, we see the colors of the rainbow: orange, yellow, green, blue, and indigo.
Note – The human eye is most sensitive to light with wavelengths around 555 nanometers, which is in the green part of the spectrum. This is why green is often used for safety signs and other objects that need to be easily seen.
53. A 230 m long train has to cross a platform of length 750m. If the train is running at a speed of 72 km/h, the time taken is:
A. 49 seconds
B. 58 seconds
C. 64 seconds
D. 72 seconds
Solutions
54. If the length of a rectangle is increased by 70%, what would be the percentage decrease (correct to nearest integer) in the width to maintain the same area?
A. 61%
B. 60%
C. 41%
D. 58%
Solutions
Let initial length and breadth be 100 each.
Area = 100 × 100 = 10000
New length = 100 × 170% = 170
Hence, new breadth = Initial area/New length = (10000)/170 = 1000/17
∴ Required percentage = [(100 – 1000/17)/100] × 100 = 41.17%
55. What is the mean deviation about median of following distribution?
12, 23, 4, 17, 5, 10, 7, 13
A. 5.875
B. 4.875
C. 3.785
D. 3.587
Solutions
56. _______________ is one of the taxes, where the impact lies on the person for whom it is legally imposed.
A. Direct tax
B. Indirect tax
C. Goods and services tax
D. Value added tax
Solutions
The correct answer is (a) Direct tax.
- Direct tax is a type of tax where the liability and burden of the tax fall on the same individual or entity. The taxpayer directly pays it to the government, and the impact cannot be shifted to another person.
- Examples of direct taxes include income tax, corporate tax, and wealth tax.
- The person or organization on whom the tax is imposed is responsible for paying it directly, unlike indirect taxes where the burden can be shifted to another party (like consumers in the case of goods).
Information Booster:
- Direct tax: The tax burden lies directly on the person or entity paying the tax.
- Indirect tax: The tax burden can be passed on to someone else, such as in the case of sales tax.
- Income tax: A direct tax on an individual’s or entity’s earnings.
- Corporate tax: A direct tax levied on the profits of a company.
57. Which compound is used as a refrigerant in air conditioners?
A. 
B.
C.
D.
Solutions
Chlorofluorocarbons (CFCs) are used as refrigerants in air conditioners. CFCs are a type of halocarbon, which is a compound that contains carbon, hydrogen, and halogen atoms. CFCs are non-flammable, non-toxic, and have a low boiling point, which makes them ideal for use as refrigerants.
However, CFCs are also ozone-depleting substances (ODS), which means that they break down ozone molecules in the Earth’s atmosphere. Ozone is a gas that protects the Earth from harmful ultraviolet radiation from the sun. The depletion of the ozone layer has been linked to an increase in skin cancer and other health problems.
Today, CFCs have been replaced by hydrofluorocarbons (HFCs) in air conditioners. HFCs are not ozone-depleting substances, but they are still greenhouse gases. This means that they contribute to climate change.
58. Select the set in which the numbers are related in the same way as are the numbers of the given sets.
(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 – Operations on 13 such as adding /subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is NOT allowed)
(605, 110, 11)
(660, 40, 33)
A. (720, 120, 12)
B. (711, 188, 16)
C. (612, 180, 13)
D. (519, 222, 11)
Solutions
Given Sets:
1. (605,110,11)
2. (660,40,33)
Analyzing the Pattern:
Set 1: (605, 110, 11)
· 605÷11=55
· 55×2=110
Set 2: (660, 40, 33)
· 660÷33=20
· 20×2=40
In both cases, the first number is divided by the third number, and then the result is multiplied by 2 to get the second number.
Step 2: Apply the pattern to the options:
Option (a): (720, 120, 12)
· 720÷12=60
· 60×2=120
· This matches the pattern
59. What is the fourth proportion to 189, 273 and 153?
A. 117
B. 299
C. 221
D. 187
Solutions
60. The tax on the salary of C is 1/4 of the salary and savings are 1/3 of the salary. The ratio of the expenditures to the savings is _________.
A. 4 : 5
B. 4 : 3
C. 5 : 4
D 3 : 4
Solutions
61. The price of a movie ticket was increased by 18%. The increase in ticket price reduced the number of audiences by 25%. What is the effect on revenue?
A. increase by 10%
B. decrease by 14%
C. decrease by 11.5%
D. decrease by 9.5%
Solutions
Given: Ticket price increased by 18%, audience reduced by 25%.
Formula Used:
Total Revenue = Ticket Price × Number of Audience
Solution:
Let’s assume the initial ticket price is 100 and assume the number of audience initially is 100.
Initial Revenue = Initial Ticket Price × Initial Number of Audience = 100 × 100 = 10,000
New Ticket Price = 100 + (18% of 100) = 100 + 18 = 118
New Number of Audience = 100 – (25% of 100) = 100 – 25 = 75
New Revenue = New Ticket Price × New Number of Audience = 118 × 75 = 8,850
Change in Revenue = Initial Revenue – New Revenue = 10,000 – 8,850 = 1,150
Percentage Decrease = (1,150 / 10,000) × 100 = 11.5%
Alternate Method:
Overall percentage decrease in revenue = 18 – 25 – [(18 × 25) / 100] = -7 – 4.5 = -11.5%
62. Which of the following vitamins are classified as fat-soluble vitamins?
A. Vitamin B and Vitamin B12
B. Vitamin C and Vitamin B
C. Vitamin E and Vitamin K
D. Vitamin B6 and Vitamin C
Solutions
Vitamin E and Vitamin K are classified as fat-soluble vitamins. Fat-soluble vitamins can dissolve in dietary fats and are stored in the body’s fatty tissues. They require dietary fat for absorption and can be stored in the body for longer periods.
Sources of Vitamin E: Nuts, seeds, vegetable oils (such as sunflower oil), green leafy vegetables, avocado, and fortified cereals.
Sources of Vitamin K: Green leafy vegetables (like kale and spinach), cruciferous vegetables, herbs (such as parsley and basil), fermented foods (like natto), and animal-based sources like liver and eggs.
63. The speed of the stream is 5 km/hr. A motorboat goes 10 km upstream and back again to the starting point in 50 minutes. What is the speed of the motorboat in still water?
A. 20 km/h
B. 25 km/h
C. 28 km/h
D. 30 km/h
Solutions
64. The unit of measurement for frequency is_____
A. Decibel
B. Hertz
C. Watt
D. Pascal
Solutions
The correct answer is (b) Hertz.
- Frequency is defined as the number of cycles or oscillations per second in a wave.
- The SI unit for frequency is Hertz (Hz), where 1 Hertz equals 1 cycle per second.
- It is commonly used to measure frequencies in sound waves, electromagnetic waves, and alternating current signals.
Information Booster:
- Hertz (Hz): Named after Heinrich Hertz, a physicist, it is the standard unit for measuring frequency.
- Decibel (dB): A unit for measuring sound intensity
- Watt (W): A unit of power, representing the rate at which energy is transferred or consumed.
- Pascal (Pa): The SI unit for pressure
65. Seven people, A, B, C, D, E, F and G, are sitting in a straight row, facing north. Only 2 people sit to the left of E. G is an immediate neighbour of E. B sits to the immediate right of F. Only 3 people sit between G and F. A sits to the immediate left of D.
Who sits to the immediate right of E?
A. F
B. D
C. G
D. A
Solutions
Seven people, A, B, C, D, E, F and G, are sitting in a straight row, facing north.
Only 2 people sit to the left of E.
G is an immediate neighbour of E.
B sits to the immediate right of F.
Only 3 people sit between G and F.
A sits to the immediate left of D.
66. Select the combination of letters that when sequentially placed in the blanks of the given series will make it logically complete.
PR_Y _ _RA_ ZP_ A_ Z
A. AZYZRY
B. APYZRY
C. APYZZY
D. AZPYRY
Solutions
By checking option a , option b and option c , we found that these options are not giving perfest repitation but by checking option d we get repitition of ‘PRAY – Z’
P R A Y Z/ P R A Y Z/ P R A Y Z
67. John starts facing North. He turns 90 degrees clockwise, then 180 degrees anticlockwise, followed by 270 degrees clockwise. Which direction is he facing now?
A. East
B. West
C. North
D. South
Solutions
68. A and B can do a piece of work in 5 days and 10 days, respectively. They began the work together but A left after some days and B finished the remaining work in 8 days. After how many days did A leave?
A. 
B. 
C. 
D. 2/3
Solutions
69. Study the following information carefully and answer the question given below:
Eight persons were born in eight different months i.e., March, April, May, July, August, September, November and December. Krishna was born after Karn. More than three persons were born before Karn.
Number of persons born between Bhim and Karn is same as number of persons born between Krishna and Bhim.Nakul was born just after Sahdev. Only three persons were born between Krishna and Arjun. Abhimanyu was born after Arjun and before Balram. Who among the following was born in September?
A. Abhimanyu
B. Bhim
C. Balram
D. Arjun
Solutions
From the given statements, More than three persons were born before Karn. Number of persons born between Bhim and Karn is same as number of persons born between Krishna and Bhim.Krishna was born after Karn . So we have two possible cases i.e. case-1 and case-2:
Only three persons were born between Krishna and Arjun . Nakul was born just after Sahdev. Abhimanyu was born after Arjun and before Balram. So case-2 is eliminated. Hence the final arrangement is:
70. R lends some money to S on which S pays ₹17,000 more to R. S lends the same money to T, on which T pays 8.5% more to S. What should be the minimum amount (in ₹) that S must borrow so that he does not incur any loss in the process?
A. 2,00,000
B. 2,25,000
C. 1,80,000
D. 1,70,000
Solutions
71. In the Constitution of India, fundamental duties are mentioned in which of the following Article?
A. Article 50
B. Article 51A
C. Article 50.
D. Article 49
Solutions
The correct answer is (b) Article 51A.
- The Fundamental Duties of Indian citizens are listed in Article 51A of the Indian Constitution.
- These duties were added by the 42nd Amendment Act of 1976, based on the recommendations of the Swaran Singh Committee.
- Initially, 10 duties were introduced, and one more was added by the 86th Amendment Act of 2002, making a total of 11 fundamental duties.
- These duties are non-justiciable, meaning they are not legally enforceable, but they are important for promoting civic responsibilities and ensuring that citizens contribute to the well-being of the country.
72 .
A. 108°
B. 36°
C. 72°
D. 118°
Solutions
73. Which one of the following processes is responsible for the glittering of air bubbles rising through water?
A. Reflection of light
B. Refraction of light
C. Total internal reflection of light
D. Scattering of light
Solutions
· The glittering or sparkling of air bubbles rising through water is primarily caused by (c) total internal reflection of light.
· Total internal reflection occurs when light traveling from a denser medium (water) to a less dense medium (air) reaches the boundary between the two at an angle greater than the critical angle. In the case of air bubbles rising through water, light rays entering the bubble from the water undergo multiple internal reflections within the bubble’s curved surface due to the change in refractive index.
· These internal reflections cause the light to scatter in various directions, resulting in the sparkling or glittering effect observed. The phenomenon is similar to how light is reflected within a prism or a diamond, creating a display of colors and reflections.
Therefore, option (c) total internal reflection of light is the process responsible for the glittering of air bubbles rising through water.
74. Study the given triangle and find the length of BC.
A. 5/2
B. 6
C. 5
D. 3
Solutions
75. If 12th January 2015 was Monday, then what day of the week was it on 26th January 2016?
A. Thursday
B. Friday
C. Tuesday
D. Wednesday
Solutions
Given: 12th January 2015 was Monday, then to find the day on 26th January 2016:
Days from 12th January 2015 to 12th January 2016= 365 days (since 2015 is not a leap year).
Days from 12th January 2016 to 26th January 2016= 14 days.
Total days= 365 + 14 = 379 days.
Calculating the day of the week:
379 days ÷ 7 = 54 weeks and 1 day.
1 day after Monday (12th January 2016 was a Tuesday).
Result: 26th January 2016 was a Tuesday.
Answer: (c) Tuesday.
76. In making decisions about important questions, it is desirable to be able to distinguish between strong arguments and weak arguments. Strong arguments are those which are both important and directly related to the question. Weak arguments are those which are of miner important and also may not be directly related to the question or may be related to a trivial aspect of the question. The question below is followed by two arguments numbered I and II. You have to decide which of the arguments is a strong argument and which is a weak argument.
Statement: Should there be a ceiling on the salary of top executives of multinationals in our country?
Arguments:
I. Yes. Otherwise it would lead to unhealthy competition and our own industry would not be able to withstand that.
II. No. With the accent on liberalization of economy, any such move would be counter-productive.
Once the economy picks up, this disparity will be reduced.
A. only argument I is strong
B. only argument II is strong
C. both I and II are strong
D. neither I nor II is strong
Solutions
In the absence of a salary ceiling, companies may engage in unhealthy competition to attract top talent, which could harm local industries, making Argument I strong. At the same time, imposing a ceiling could contradict the principles of liberalization, and salary growth may incentivize better performance, supporting Argument II as well.
Hence, both arguments are strong, and the correct answer is Option C.
77. Which gas is produced when vinegar reacts with baking soda?
A. Oxygen (O2)
B. Carbon dioxide (CO2)
C. Hydrogen (H2)
D. Ammonia (NH3)
Solutions
78. In a certain code language, ‘CRUSADE’ is written as ‘ETTUZFD’ and ‘MUSICAL’ is written as ‘OTUHEZN’. How will ‘AUGUST’ be written in that language?
A. ZTITTU
B. ZTITUV
C. ZWIWUV
D. ZTHTUV
Solutions
Let’s analyze the pattern used in the code language:
Given Examples:
1. CRUSADE → ETTUZFD
· C → E (+2)
· R → T (+2)
· U → T (-1)
· S → U (+2)
· A → Z (-1)
· D → F (+2)
· E → D (-1)
2. MUSICAL → OTUHEZN
· M → O (+2)
· U → T (-1)
· S → U (+2)
· I → H (-1)
· C → E (+2)
· A → Z (-1)
· L → N (+2)
Observations:
·The pattern alternates between adding 2 (+2) in consonants and subtracting 1 (-1) to vowels the corresponding letters.
Apply the same pattern to “AUGUST”:
1. A → Z (-1)
2. U → T (-1)
3. G → I (+2)
4. U → T (-1)
5. S → U (+2)
6. T → V (+2)
Therefore, “AUGUST” is coded as: ZTITUV
Answer:
The correct answer is (b) ZTITUV.
79. Which of the following metal (shown by its symbol) is generally used for making filaments of bulb?
A. Fe
B. An
C. Ag
D. W
Solutions
The correct answer is (d) W.
- The metal tungsten, represented by the symbol W, is generally used for making filaments of light bulbs.
- Tungsten has a very high melting point (about 3,422°C), which makes it ideal for use in light bulb filaments where it can operate at high temperatures without melting.
- Its ability to maintain structural integrity at high temperatures ensures the filament’s durability and efficiency in producing light.
80. 1 Pascal equals 1 ________________.
A. Nm²
B. Nm⁻²
C. Nm
D. Nm⁻¹
Solutions
The correct answer is (b) Nm⁻².
Pascal (Pa) is the unit of pressure in the International System of Units (SI). It is defined as the pressure exerted by a force of 1 Newton (N) uniformly distributed over an area of 1 square meter (m²). Therefore, 1
Pascal is equal to 1 Newton per square meter (Nm⁻²), indicating the pressure exerted by a force of 1 Newton distributed over an area of 1 square meter.
81. Sound waves are characterized by which of the following properties?
A. Amplitude and frequency
B. Wavelength and speed
C. Reflection and refraction
D. Diffraction and interfserence
Solutions
The correct answer is (a) Amplitude and frequency.
- Sound waves are longitudinal waves characterized by two key properties:
- Amplitude: The maximum displacement of particles from their equilibrium position. It determines the loudness of the sound.
- Frequency: The number of oscillations (vibrations) per second, measured in Hertz (Hz). It determines the pitch of the sound.
- Other properties like wavelength, speed, reflection, refraction, diffraction, and interference are related to wave behavior, but amplitude and frequency are the primary characteristics that describe a sound wave itself.
Information Booster:
- Amplitude: Affects the loudness of the sound. Higher amplitude means a louder sound.
- Frequency: Affects the pitch of the sound. Higher frequency results in a higher-pitched sound.
- Wavelength: The distance between two consecutive points in phase on the wave.
- Speed: The velocity at which sound travels through a medium.
82. Plants that flower only once in, their lifetime are known as –
A. Polycarpic
B. Monocarpic
C Monogamous
D. Monogeneric
Solutions
Monocarpic plants are those that flower, set seeds, and then die. They flower once in their lifetime.
· Polycarpic plants are those that can flower and produce fruit multiple times during their lifetime. For example, apple trees and banana plants are polycarpic.
· Monogamous refers to a mating system in which an individual forms a long-term pair bond with one mate. This term is not related to plants and is not the correct answer to this question.
· Monogeneric refers to a classification system in which all species within a particular taxonomic group belong to a single genus. This term is not related to the flowering behavior of plants and is not the correct answer to this question.
83. If ‘+’ means ‘÷’, ‘–’ means ‘+’, ‘×’ means ‘–’, ‘÷’ means ‘×’, then what will come in place of the question mark (?) in the following equation?
14 – 3 ÷ 8 × 63 + 9 = ?
A. 33
B. 50
C. 31
D. 45
Solutions
Given equation: 14–3÷8×63+9=?
Step 1: Replace the symbols with their actual operations:
· Replace ‘–’ with ‘+’
· Replace ‘÷’ with ‘×’
· Replace ‘×’ with ‘–’
· Replace ‘+’ with ‘÷’
The equation after replacement: 14+3×8–63÷9=?
Step 2: Apply the operations following BODMAS (Bracket, Order, Division, Multiplication, Addition, Subtraction) rule:
1. Multiplication and Division first:
· 3×8=24
· 63÷9=7
2. Substitute these into the equation:
· 14+24–7
3. Addition and Subtraction:
· 14+24=38
· 38–7=31
Answer:
The correct answer is (c) 31.
84. Which of the following numbers will replace the question mark (?) in the given series?
8, 18, 38, 78, 158,?
A. 318
B. 340
C. 290
D. 268
Solutions
Given: 8, 18, 38, 78, 158,?
Observe how the numbers are increasing:
18 – 8 = 10, 38 – 18 = 20, 78 – 38 = 40 and 158 – 78 = 80
Logic: The difference between consecutive terms is doubling each time:
10 × 2 = 20
20 × 2 = 40
40 × 2 = 80
Following this pattern, the next difference should be:
80 × 2 = 160
So, the next number in the series would be:
158 + 160 = 318
Thus, the number that replaces the question mark is 318.
85. Find the odd one out with respect to animals’ response to abiotic factors.
A. Suspend
B. Migrate
C. Conform
D. Reproduce
Solutions
The correct answer is (d) Reproduce.
- In the context of animals’ responses to abiotic factors (such as temperature, humidity, and light), the options provided mostly deal with how animals adjust or adapt to changing environmental conditions.
- Suspend, Migrate, and Conform are all mechanisms animals use to cope with abiotic stresses:
- Suspend: Some animals go into states like hibernation or aestivation to avoid harsh conditions.
- Migrate: Many animals move to more favorable environments when conditions become unfavorable.
- Conform: Some organisms, especially cold-blooded animals, adjust their body temperature or behavior to match the external environment.
- Reproduce, however, is not a direct response to abiotic stress. Reproduction is more related to the life cycle and species continuation rather than an immediate coping mechanism for environmental changes.
Information Booster:
- Abiotic factors: Non-living physical and chemical elements like temperature, light, and water that affect organisms.
- Conformers: Organisms that do not regulate their internal conditions but change with the external environment.
- Migrators: Animals that move seasonally to cope with changes in their habitat.
- Suspenders: Organisms that temporarily reduce metabolic activity to survive extreme conditions (e.g., hibernation, aestivation).
86. Who invented the electrocardiogram (ECG)?
A. Willem Einthoven
B. Edward Jenner
C. Antonio de Ulloa and Charles Wood
D. Karl Benz
Solutions
The correct answer is (a) Willem Einthoven. Willem Einthoven, a Dutch physiologist, is credited with inventing the electrocardiogram (ECG) in the early 20th century. He developed the technology and methodology for recording and interpreting electrical signals produced by the heart, which revolutionized the field of cardiology and became an essential diagnostic tool for studying heart conditions. Einthoven’s work earned him the Nobel Prize in Physiology or Medicine in 1924.
87. Where will the inaugural season of the National Women’s Hockey League 2024-2025 be held?
A. New Delhi
B. Ranchi
C. Mumbai
D. Kolkata
Solutions
Correct answer is (b)
The Indian hockey landscape is set to witness a groundbreaking event with the inaugural season of the National Women’s Hockey League 2024 – 2025. Scheduled to be held in Ranchi from April 30 to May 9, this league promises to be a thrilling showcase of the country’s top women’s hockey talent.
The National Women’s Hockey League is the first domestic women’s league of its kind in India, promising an exhilarating showcase of talent and skill. Aiming to provide a platform for emerging athletes and elevate the stature of women’s hockey in the country, the league will witness fierce competition among the top state teams that finished in the top eight at the marquee 14th Hockey India Senior Women’s National Championships.
88. A shopkeeper bought certain number of apples for Rs.3,600. He sold one-fifth of them at a loss of 10%, one-fourth of the remaining apples at a loss of 5%, and two-third of the rest at a profit of 15%. At what price (in Rs.) should he sell the remaining apples to earn a profit of 27% overall ?
A. 1,548
B. 1,584
C. 1,845
D. 1,864
Solutions
Given:
Total cost price of apples = Rs. 3,600
1/5th of apples sold at a loss of 10%
1/4th of the remaining apples sold at a loss of 5%
2/3rd of the rest sold at a profit of 15%
89. What is the official theme for World Intellectual Property Day 2024?
A. “Innovation for Sustainability”
B. “IP and the SDGs: Building Our Common Future with Innovation and Creativity”
C. “Creativity Unleashed: A Path to Progress”
D. “Global Innovation for a Better Tomorrow”
Solutions
The correct answer is (b)
· The world is observing 26 April as the “World Intellectual Property Day.” This day is organized by the World Intellectual Property Organization (WIPO) every year on 26 April. The occasion promotes the role of Intellectual Property (IP) in encouraging innovation and creativity.
· The official theme of World Intellectual Property Day 2024 is ‘IP and the SDGs: Building our common future with innovation and creativity’.
About the World Intellectual Property Organization (WIPO):
· Intellectual property (IP) is a category of property that includes intangible creations of human intelligence primarily copyrights, patents, and trademarks.
· WIPO was formed in 1967 to encourage creative activities and promote intellectual property protection around the world.
· Currently, there are 26 international treaties under WIPO.
· WIPO is headquartered in Geneva, Switzerland.
· Currently, 191 countries are its members.
· All member states of the United Nations can become its members, but it is not binding.
· India became a member of WIPO in 1975.
90. Which of the following is not a functional group?
A. Alcohol
B. Carboxylic acid
C. Amine
D. Alkane
Solutions
The answer is (d) Alkane.
A functional group is a group of atoms that has characteristic chemical properties. Alcohols, carboxylic acids, and amines are all functional groups. They have different properties and reactivity than alkanes.
Alcohols have a hydroxyl group (-OH) attached to a carbon atom.
Carboxylic acids have a carboxyl group (-COOH) attached to a carbon atom.
Amines have an amino group (-NH2) attached to a carbon atom.
Alkanes, on the other hand, do not have any functional groups. They are made up of only carbon and hydrogen atoms, and they have very different properties than functional groups.
For example, alkanes are not very reactive. They do not react with water, acids, or bases. Functional groups, on the other hand, are very reactive. They can react with water, acids, bases, and other functional groups.
Therefore, the only option that is not a functional group is alkane. So the answer is (d).
91. A shopkeeper bought 50 kg of wheat at ₹48 per kg and mixed it with 80 kg of rice at ₹60 per kg. At what rate (₹ per kg) should he sell the mixture to gain 15%?
A. ₹63.69.
B. ₹58.20
C. ₹60.75
D. ₹62.00
Solutions
92. A and B alone can do a piece of work in 4 and 9 days, respectively. In how many days will the work be completed, if they both work on alternate days, starting with B ?
A. 
B. 
C. 5
D. 
Solutions
93. A parachute descends slowly whereas a stone dropped from the same height falls rapidly, because –
A. Stone is heavier than parachute
B. Special mechanisms are present in parachute
C. A parachute has a larger surface area and air resistance is more
D. None of the above
Solutions
The correct answer is (c) A parachute has a larger surface area and air resistance is more.
- A parachute descends slowly because its large surface area significantly increases the air resistance (drag) acting on it.
- When objects fall through the air, they experience resistance due to the air molecules. The larger the surface area, the greater the air resistance.
- In the case of the parachute, this increased air resistance counteracts the force of gravity, slowing its descent.
- On the other hand, a stone has a much smaller surface area relative to its weight, so it experiences less air resistance and falls rapidly.
Information Booster:
- Air resistance: A force exerted by air on a moving object, opposing its motion. It increases with the object’s surface area.
- Surface area: The total area of the surface of an object. Larger surface areas experience more air resistance.
- Gravity: The force that pulls objects toward the Earth. The rate of descent depends on the balance between gravity and air resistance.
94. Which disease is caused by the deficiency of iron in the body?
A. Diabetes mellitus
B. Scurvy
C. Anemia
D. Tuberculosis
Solutions
The correct answer is (c) Anemia.
- Anemia is a condition caused by a deficiency of iron in the body. Iron is essential for the production of hemoglobin, a protein in red blood cells that carries oxygen throughout the body.
- A lack of iron leads to a reduced production of hemoglobin, which results in less oxygen being transported to tissues and organs, causing symptoms such as fatigue, weakness, pale skin, and shortness of breath.
- Iron-deficiency anemia is the most common type of anemia and can be treated with iron-rich foods or supplements.
Information Booster:
- Iron: A crucial mineral required for producing hemoglobin and maintaining healthy red blood cells.
- Symptoms of Anemia: Fatigue, weakness, dizziness, shortness of breath, pale skin.
- Causes of Iron Deficiency: Poor diet, heavy menstrual bleeding, pregnancy, and gastrointestinal disorders.
- Treatment: Consuming iron-rich foods like spinach, red meat, and lentils, or taking iron supplements.
Additional Information:
- Diabetes mellitus: A chronic condition caused by insulin deficiency or resistance, leading to high blood sugar levels.
- Scurvy: Caused by a deficiency of vitamin C, leading to bleeding gums, fatigue, and joint pain.
- Tuberculosis (TB): An infectious disease caused by the bacteria Mycobacterium tuberculosis, primarily affecting the lungs.
95. Archana took a loan of ₹ 78,000 from a bank on 24th January 2012 at 
per annum simple interest and paid it back on 18th June 2012. Find the total amount paid by Archana. (Approximated to nearest integer)
A. ₹80,723
B. ₹90,730
C. ₹85,733
D. ₹88,730
Solutions
96. Which one of the following is correctly matched?
A. Brahmo Samaj – Annie Basant
B. Arya Samaj – Swami Dayanand Saraswati
C. Ram Krishna Mission – Keshab Chandra Sen
D. Theosophical Society – Swami Vivekananda
Solutions
The correct match is (b) Arya Samaj – Swami Dayanand Saraswati. Swami Dayanand Saraswati was the founder of the Arya Samaj, a Hindu reform movement that emerged in the 19th century in India. The Arya Samaj aimed to promote the ideals of Vedic wisdom, social reform, and the revival of Hinduism based on the principles outlined in the Vedas. Swami Dayanand Saraswati played a pivotal role in advocating for the importance of education, the abolition of social evils, and the empowerment of women. His teachings and the Arya Samaj had a significant impact on Indian society and the Hindu reform movement.
97. Electrons can be deflected by which of the following?
A. Only magnetic field
B. Only electric field
C. Both magnetic and electric field
D No option is correct.
Solutions
The correct answer is (c) Both magnetic and electric fields.
Electrons can be deflected by both magnetic and electric fields. The deflection of electrons in a magnetic field is described by the Lorentz force, which states that a charged particle moving through a magnetic field experiences a force perpendicular to both its velocity and the magnetic field. This force causes the electron to follow a curved path.
Similarly, electrons can also be deflected by an electric field. Electric fields exert forces on charged particles, causing them to accelerate or decelerate depending on the direction of the field and the charge of the particle. This deflection can occur when the electron enters or exits an electric field or when the electric field is present throughout its path.
Therefore, the motion of electrons can be influenced by both magnetic and electric fields, making option (c) the correct choice.
98. Who is being honoured with the Freedom Prize of the Media by the Ludwig Erhard Summit?
A. Aleksei Navalny and Yulia Navalnaya
B. Angela Merkel and Vladimir Putin
C. Edward Snowden and Chelsea Manning
D. Greta Thunberg and Malala Yousafzai
Solutions
Correct answer is (a)
· The late Russian dissident Aleksei Navalny and his wife, Yulia Navalnaya, will receive the Freedom Prize of the Media from a leading German forum, the Ludwig Erhard Summit. The award is presented annually to public figures who have made significant contributions to freedom of expression, dialogue, and democracy.
· Aleksei Navalny, a prominent Russian opposition leader and anti-corruption activist, tragically passed away. However, his legacy and commitment to democratic values will be honored with this prestigious award.
Previous Recipients of the Award
The Freedom Prize has been awarded to other prominent figures, including Russian politician Garry Kasparov in 2023 and Ukrainian President Volodymyr Zelenskyy in the past.
99. If ‘A’ stands for ‘÷’, ‘B’ stands for ‘×’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘−’, what will come in place of the question mark (?) in the following equation?
3 B 29 D 1 C 9 A 9 = ?
A. 89
B. 87
C. 69
D. 88
Solutions
Given: 3 B 29 D 1 C 9 A 9 = ?
| A | ÷ |
| B | × |
| C | + |
| D | – |
As per the question after changing the signs we get following equations-
3 × 29 – 1 + 9 ÷ 9 = ?
Explanation:
Following the BODMAS rule (Bracket, Orders (i.e. powers and square roots, etc.), Division and Multiplication, Addition and Subtraction):
1. Division (÷): 3 × 29 – 1 + 1
2. Multiply (×): 87 – 1 + 1
3. Addition (+): 88 – 1
4. Subtraction (-): 87
Final Answer: (b) 87
100. Identify the number of triangles in the given figure.
A. 10
B. 7
C. 8
D. 9
Solutions
There are 10 triangles in the given figure.
