1.{20 – (25 – 33)} ÷ {- 5 × 4 – (- 6)} + 56 ÷ (- 27 + 13) = ?
A. -4
B. -2
C. 4
D. -6
Solutions
Simplify using BODMAS: Bracket – Of – Division – Multiplication – Addition – Subtraction
{20 – (25 – 33)} ÷ {- 5 × 4 – (- 6)} + 56 ÷ (- 27 + 13)
⇒ {20 – (–8)} ÷ {- 5 × 4 + 6)} + 56 ÷ (- 14)
⇒ {20 + 8} ÷ {- 20 + 6} + 56 ÷ (-14)
⇒ {28} ÷ {- 14} + 56 ÷ (-14)
⇒ −2 – 4
⇒ −6
2. Durga Puja is the main festival of _______
A. Kashmir
B. West Bengal
C. Kerala
D. Rajashtan
Solutions
The Correct Answer is West Bengal.
| State | Festival Name |
| Kashmir | 1. Lohri is the main festival of Kashmir. 2. This occasion is celebrated on 13th of January in the month of Magh, a day before Makar Sankranti. 3. It celebrates fertility and the spark of life. |
| West Bengal | 1. Durga Puja is the main festival of West Bengal 2. This festival is celebrated in honour of Goddess Durga’s triumph over the demon ‘Mahisasura’. 3. This festival falls during the month of September/October every year. |
| Kerala | 1. Onam is the main state festival of Kerala. 2. It falls in the beginning of month of Chigam, the first month of Malayalam calendar. 3. It is mainly a harvest festival but it also celebrates the asura King Mahabali from Patala (the Underground). |
| Rajasthan | 1. Teej is the main festival of Rajasthan. 2. It falls on third day of the month of Shravan (July/August). 3. It is celebrated for the women of the household who apply mehendi or henna on their hands and wear new clothes. |
3. A statement is followed by two arguments. Decide which of the arguments is are strong with respect to statement.
Statement:
There should be strict penalty for people using mobile phone while driving.
Arguments:
I. Yes, it will ensure that the number of accident due to mobile phone usage gets avoided.
II. No, it is difficult to implement as people are used to using cell phones anywhere.
A. Only argument I is strong.
B. Both I and II are strong
C. Only argument II is strong
D. Neither I nor II is strong
Solutions
The first argument claims that the benefit of issuing penalty would be the reduced number of accidents caused by mobile phone usage while driving.
Thus, it is able to strongly support the given statement.
Therefore, argument I is strong.
Having a habit of using mobile phones everywhere does not justify the need to use it while driving. Therefore, this argument is not strong enough to reject the idea of penalising such offenders.
Therefore, argument II is not strong.
Hence, only argument I is strong.
4. Car is related to Tyre in the same way Chair is related to:
A. Back
B. Sit
C. Rest
D. Legs
Solutions
The logic followed here is:
Tyre is a part of Car.
Similarly,
Legs are a part of Chair.
Hence, ‘legs’ is the correct answer.
5. Select the option figure that will complete the series of question
A. A
B. B
C. C
D. D
Solutions
The logic followed here is:
In each figure the complete central image turns 90 degrees in clockwise direction.
- Hence, the option figure D will complete the series.
6. Read the given statement and conclusions carefully and select which of the conclusions logically follow(s) from the statement.
Statement:
Mr. X says that he gets good thought in the morning.
Conclusions:
1. Thoughts come to Mr. X only in the morning.
2. Thoughts does not come to Mr. X in the evening.
A. Only conclusion 2 follows
B. Neither 1 nor 2 follows
C. Either 1 or 2 follows
D. Only conclusion 1 follows
Solutions
The statement does not imply that Mr. X fails to get thoughts at other periods of time besides morning.
Hence, neither conclusion I nor conclusion II follows.
7. _______ is an alkali metal.
A. Sodium
B. Manganese
C. Aluminium
D. Magnesium
Solutions
The Correct Answer is Option 1 i.e Sodium.
| Alkali Metal | 1. Sodium is a Group 1 element which is a member of Alkali Metal group. 2. Group 1 elements of Periodic table is called as Alkali Metal. 3. Sodium has its symbol called 11Na with Atomic number 11. |
| Transition Metal | 1. Manganese is a Group 7 element which is a member of Transition Metal. 2. Group 7 elements of Periodic table is called as Transition Metal 3. Manganese has its symbol called 25Mn with Atomic number 25. |
| Post Transition Metal | 1. Aluminium is a Group 13 element which is a member of Boron group. 2. The elements which are located right of transition metals and to the left of metalloids is called as Post Transition Metal. 3. Aluminium has its symbol called 13Al with Atomic number 13. |
| Alkaline Earth Metal | 1. Magnesium is a Group 2 element which is member of Alkaline Earth Metal. 2. Group 2 elements of Periodic table is called as Alkaline Earth Metal 3. Magnesium has its symbol called 12Mg with Atomic number 12. |
8. If 
find the value of 
A. 22.360
B. 24.595
C. 20.124
D. 17.888
Solutions
According to the problem,
⇒ 22.36
9. If an object with a mass of 25 kg is moving with a uniform acceleration of 8ms-2, then the force exerted by the body is ______.
A. 200 N
B. 200 J
C. 200 ms-2
D. 200 ms2
Solutions
The Correct Answer is Option 1 i.e 200 N.
CONCEPT:
- Force: The interaction which after applying on a body changes or try to change the state of rest or state of motion of the body is called force.
Force (F) = Mass (m) × acceleration (a)
CALCULATION:
Given that:
Mass, m = 25 kg and
Acceleration, a = 8 ms-2
Force (F) = 25 × 8
Force = 200 N
10. The LCM of 60 and 54 is
A. 6 × 5 × 9
B. 6 × 10 × 3
C. 6 × 10 × 9
D. 60 × 54
Solutions
LCM = least common multiple, the least value which is exactly divisible by all the given numbers
60 = 2 × 2 × 3 × 5
54 = 2 × 3 × 3 × 3
∴ LCM of 60 and 54 is = 2 × 2 × 3 × 3 × 3 × 5 = 6 × 10 × 9
11. Based on the following table, what is the average number (in thousands) of screws manufactured in the unit over the given 6 months?
| Months | No. of screws Manufactured, in Thousand |
| Jan | 200 |
| Feb | 300 |
| Mar | 250 |
| Apr | 250 |
| May | 250 |
| Jun | 250 |
A. 200
B. 250
C. 300
D. 150
Solutions
Total number of screws manufactured in the unit over the given 6 months,
⇒ (200 + 300 + 250 + 250 + 250 + 250) thousand = 1500 thousand
∴ Average number of screws manufactured in the unit over the given 6 months,
⇒ 1500 thousand/6 = 250 thousand
12. Grey revolution is related to ______.
A. leather
B. silk
C. fish
D. fertilizers
Solutions
The Correct Answer is Option 4 i.e Fertilizers.
| Field / Product | Revolution |
| Leather/ Cocoa/ Non-Conventional Products | 1. Brown Revolution is related to Leather production. 2. Hiralal Chaudri was the father of the Brown revolution. |
| Fish and Aqua | 1. Blue Revolution is related to Fish production. 2. Dr. Arun Krishnan and Dr. Harilal Chaudhari were the father of the Blue revolution. 3. Period of revolution is 1973 to 2002. |
| Fertilizers | 3. Grey Revolution is related to Fertilizers. 2. Period of revolution is 1960 to 1970. |
13. Convert 0.6̅ into a fraction:
A. 2/3
B. 4/3
C. 6/3
D. 2/6
Solutions
Any number in the form of a/b is called fraction.
Let, x = 0.6̅ = 0.6666 —- (1)
Multiplying above equation by 10, we get
10x = 6.6666 —- (2)
Subtracting equation (1) from equation (2), we get
10x – x = 6.6666 – 0.6666
⇒ 9x = 6
⇒ x = 6/9
∴ x = 2/3
14. In ethane, each carbon atom is bonded to _______ hydrogen atoms.:
A. One
B. Three
C. Five
D. Four
Solutions
The Correct Answer is Option 4 i.e Three Atoms.
- The chemical formula is C2H6.
- In Ethane, each carbon atom is bonded to three hydrogen atoms.
- In the structural formula, each dash (-) represents a single covalent bond, in which two atoms share one pair of valence electrons.
15. What is the minimum number of lines required to make the following figure?
A. 18
B. 13
C. 20
D. 16
Solutions
- Hence, the minimum 18 lines are required to make the given figure.
16. The formula of Lithium Nitride is
A. Li2N
B. LiN
C. Li3N2
D. Li3N
Solutions
The Correct Answer is Option 4 i.e Li3N.
- The formula of Lithium Nitride is Li3N.
- Lithium nitride is the only stable alkali metal nitride.
- It has high melting point of about 813 oC.
- Other anions: Lithium oxide
- Solubility in water: reacts
17. Kautilya’s Arthashatra given us information about the ___administration.
A. Gupta
B. Rashtrakuta
C. Pratihara
D. Maurya
Solutions
The correct answer is Option 4, i.e Mauryan.
- The Arthashastra is an Indian treatise on politics, economics, military strategy, the function of the state, and social organization attributed to the philosopher Kautilya.
- The Arthashastra is thought to have been written by Kautilya as a kind of handbook for Chandragupta instructing him in how to reign over a kingdom and encouraging direct action in addressing political concerns without regard for ethical considerations.
- Hence, the correct answer is Mauryan Administration.
18. When two equal force are acting on a body and opposite in direction, the net force acting on the body becomes _____.
A. three-times
B. two-times
C. zero
D. four-times
Solutions
The Correct Answer is Option 3 i.e Zero.
- When two equal force are acting on a body and opposite in direction, the net force acting on the body becomes zero.
- A two forces of equal size, acting on body, in opposite direction is known as Balanced Force.
- Force can be defined as the pull or push applied on an object.
19. ______ promote(s) cell division.
A. Abscisic acid
B. Cytokinins
C. Gibberellins
D. Auxin
Solutions
The Correct Answer is Option 2 i.e Cytokinins.
| Plant Hormones | Description |
| Abscisic acid | 1. It is a plant hormone. 2. It promotes dormancy in seeds and buds in plants. |
| Cytokinins | 1. It is a plant hormone. 2. It promotes cell division in plants. |
| Gibberellins | 1. It is a plant hormone. 2. It promotes stem elongation in plants. |
| Auxin | 1. It is a plant hormone 2. It promotes cell elongation in plants. |
20. Which of the following lies on the reflecting surface of a spherical mirror?
A. Centre of curvature
B. Focus
C Pole
D. Focal length
Solutions
CONCEPT:
The systematic diagram of reflection through the spherical mirror is given by:
- Pole: The center of the reflecting surface of a spherical mirror is called the pole.
- Centre of curvature (C): The reflecting surface of the spherical mirror forms a part of the sphere. The center of this sphere is called the center of curvature of the mirror.
- Focus (F): Rays which are coming parallel to the principal axis falling on spherical mirror intersect or meet at the point on the principal axis is called as the principal focus.
- Focal length (f): The distance between pole and principal focus is called the principal focal length.
EXPLANATION:
- The distance between focal and pole is termed as focal length, outside the mirror.
- The center of curvature is not a part of the mirror and lies outside its reflecting surface.
- Pole lies on the reflecting surface of the mirror.
21. White phosphorous is stored in:
A. Oxygen
B. Alcohol
C. Hydrogen
D. water
Solutions
The Correct Answer is Option 4 i.e Water
- White phosphorous is stored in water.
- White phosphorous is insoluble in water so it is stored underwater to prevent oxidation.
- Also white phosphorous is highly reactive, flammable and igniting naturally in the air unless it is stored underwater.
22. The mean of the 8 smallest numbers from a group is 17, while the mean of all the numbers of the group taken together is 20. If the mean of the numbers leaving the smallest eight out is 22, how many numbers were present in group in all?
A. 22
B. 20
C. 18
D. 19
Solutions
Let, there are x numbers present in the group
According to the question,
8 × 17 + (x – 8) × 22 = 20 × x
⇒ 136 + 22x – 176 = 20x
⇒ 2x = 40
⇒ x = 20
∴ There were 20 numbers in the group
23. How many rectangles are there in this figure?
A. 9
B. 14
C. 17
D. 16
Solutions
The rectangles are XUON, UVTO, XVTN, PRVU, OTHI, PRHI, PDSU, RYWT, REGH, CFED, PEGI, LQVM, ABSM, KQHJ, PRTO, UVHI, RDVS.
Hence, 17 is the correct answer.
24. A jeweller made a piece of uniquely designed diamond necklace and the selling price was fixed at Rs. 10,00,000. In making this piece, on the raw material, the jeweller had invested Rs. 3,00,000 and had paid a labour charge of Rs. 2,00,000. If 20% of the raw material cost was of gold, what is the actual amount the jeweller had spent in procuring the gold?
A. Rs. 1,60,000
B. Rs. 1,08,000
C. Rs. 3,60,000
D. Rs. 60,000
Solutions
Total cost of Raw material = Rs. 3,00,000
∵ The cost of procuring the gold is dependent upon only the raw material cost and no other cost.
∴ Amount spent by the jeweller in procuring the gold = Rs. (3,00,000 × 20/100) = Rs. 60,000
25. Complete the number series by choosing the missing terms from the options.
11, 20, 27, 36, 43, ?, ?, 68, 75
A. 50, 61
B. 52, 61
C. 50, 59
D. 52, 59
Solutions
11 + 9 = 20;
20 + 7 = 27;
27 + 9 = 36;
36 + 7 = 43;
43 + 9 = 52;
52 + 7 = 59;
59 + 9 = 68;
68 + 7 = 75;
Hence, 52 and 59 are the missing term in the given series.
26. The sum of all interior angles of a polygon is 1260°. Find the number of sides of the polygon.
A. 11
B. 8
C. 10
D. 9
Solutions
Let, number of sides of the polygon be n
Sum of all interior angles,
(n – 2) × 180° = 1260°
⇒ n – 2 = 7
⇒ n = 9
∴ Number of sides in the polygon = 9
27. As of May 2018, what is the portfolio held by the current Union Minister Smriti Irani?
A. Information and Broadcasting
B. Science and Technology
C. Health and Family Welfare
D. Women and Child Development
Solutions
The correct answer is Option 1, i.e Information and Broadcasting Ministry.
- Smriti Irani held the porfolio of Information and Broadcasting Ministry till May 2018.
- The Ministry of Information and Broadcasting (Ministry of I&B) is responsible for the formulation and administration of rules, regulations and laws in the areas of information, broadcasting, the press and the Cinema of India.
- The Ministry is responsible for the administration of Prasar Bharati.
- The Central Board of Film Certification is the other important statutory body under this ministry being responsible for the regulation of motion pictures broadcast in India.
28. A and B together can complete a task in 1.2 days. However, if A works alone, completes half the job and leaves and then B works alone and completes the rest of the work, it takes 2.5 days in all to complete the work. If B is more efficient than A, how days would it have taken it have taken B to do the work by herself?
A. 1.5
B. 1.8
C. 2.0
D. 2.2
Solutions
Suppose, A can complete the task in = x days,
B can complete the task in = y days
According to the question,
1/x + 1/y = 1/1.2
⇒ x + y = xy/1.2 …i)
A completes half the job in = x/2 days and B completes half the job in = y/2 days
⇒ x/2 + y/2 = 2.5
⇒ x + y = 5 …ii)
From (i) and (ii), we get,
xy/1.2 = 5
⇒ xy = 6
⇒ x = 6/y …iii)
From (ii) and (iii) we get,
6/y + y = 5
⇒ 6 + y2 = 5y
⇒ y2 – 3y – 2y + 6 = 0
⇒ y(y – 3) – 2(y – 3) = 0
⇒ (y – 3) (y – 2) = 0
⇒ y = 3 or 2
For y = 3, x = 6/3 = 2
For y = 2, x = 6/2 = 3
∵ B is more efficient than A
∴ B take less days than A∴ B would take 2 days to complete the task
29. In a shopping mall, a handbag was sold for Rs. 2990 after giving a discount of P%, If the marked price of the handbag was Rs. 4600, find the value of P?
A. 40
B. 45
C. 35
D. 72
Solutions
Marked price of the hand bag = Rs. 4600
Selling price of the hand bag = Rs. 2990
According to the question,
4600 – 4600 × P/100 = 2990
⇒ 46P = 1610
⇒ P = 35
∴ P = 35
ALTERNATE METHOD
D% = (MP – SP)/MP × 100,
Where,
D% is discount %,
MP is marked price,
SP is selling price,
According to the question,
D% = (4,600 – 2,990)/4,600 × 100
⇒ D% = 1,610/4,600 × 100
⇒ D% = 1,610/46 = 35
∴ Value of P is 35.
30. In ________, cells are loosely packed so that large intercellular spaces are found.
A. Parenchyma
B. Tracheids
C. Sclerenchyma
D. Collenchyma
Solutions
The Correct Answer is Option 1 i.e Parenchyma.
| Types of Cells | Description |
| Parenchyma | 1. It is type of cell in plants. 2. In this cells are loosely packed so that large inter cellular spaces are found. 3. It helps in absorption of light and for regulating gas exchange in plant. |
| Tracheids | 1. It is type of conducting cell in plants. 2. It transports water and minerals to all parts of plants. |
| Sclerenchyma | 1. It is type of cell in plants. 2. In this cells are very closely packed. 3. It helps in anchoring of plants. |
| Collenchyma | 1. It is type of cell in plants. 2. In this cells are closely packed. 3. These cells are irregular in shape. 4. It helps in elongation and growth of plants. |
31. Name the director of the blockbuster movie ‘Baahubali’
A. Madhur Bhandarkar
B. Prabhu Deva
C. Karan Johar
D. S. S. Rajamouli
Solutions
The Correct Answer is Option 4 i.e S. S. Rajamouli.
- The Director of the blockbuster movie “Baahubali” is S. S. Rajamouli.
- It was written by K. V. Vijayendra Prasad.
- Screen Play was done by K. V. Vijayendra Prasad and S. S. Rajamouli.
- It was produced by Shoba Yarlagadda and Prasad Devineni.
- It was released on 10th July 2015.
- Baahubali was one of the highest grossing movie in India and 3rd highest grossing Indian film across the world.
32. Insert mathematical symbols in the place of ? To get the result.
((10 ? 10) ? 25) ? 10 = 10
A. -, ×, ÷
B. ×, ×, +
C. +, ÷, ÷
D. -, ×, +
Solutions
We can observe that,
((10 – 10) × 25) + 10
⇒ (0 × 25) + 10
⇒ 0 + 10
⇒ 10
Hence, LHS = RHS
∴ Option 4 is correct
33. Which of the following correctly represents the relationship between?
a) Metal
b) Glass
c) Vessels
A. 
B. 
C. 
D. 
Solutions
Glass and Metal are not the only material used to make a vessel. Clay, plastic and other materials are also used to make vessels.
Hence, the figure given above is the correct diagram that represents the given relationship.
34. Who was honoured with the prestigious 2018 Padma Bhushan award in the field of Sports-Billiards/Snooker?
A. Ashok Shandilya
B. Geet Sethi
C. Pankaj Advani
D. Michael Ferreira
Solutions
The Correct Answer is Option 3 i.e Pankaj Advani.
- Pankaj Advani was honoured with the prestigious 2018 Padma Bhushan award in the field of Sports-Billiards / Snooker.
- Padma Bhushan is an 4th highest civilian award which is awarded by Government of India.
| Awardee | Award | Category | Year |
| Geet Sethi is an professional player in the field of Billiards who was born in Delhi. | Padma Bhushan | Sports | 1986 |
| Pankaj Advani is an professional player in the field of Billiards and Snooker who was born in Maharastra. | Padma Bhushan | Sports | 2009 |
| Michael Joseph Ferreira is an professional player in the field of Billiards who was born in Mumbai | Padma Bhushan | Sports | 1984 |
35. In an alloy of German silver, the ratio of copper to zinc was 21 : 16 while that of nickel to zinc was 7 : 24 What was the ratio of copper to zinc to nickel in the alloy?
A. 21 : 16 : 7
B. 17 : 21 : 4
C. 63 : 48 : 14
D. 68 : 28 : 21
Solutions
The correct answer is Option 3, i.e 63 : 48 : 14.
- Copper to Zinc = 21 : 16
- Nickel to Zinc = 7 : 24
- Zinc is common in both and hence we make it have same value in both ratios.
- We therefore get the LCM of 16 and 24.
- The LCM of 16 and 24 = 48
- Multiplying first ration with 3 and second ratio with 2, we get
- Copper : Zinc = 63 : 48
- Nickel : Zinc = 14 : 48
- Thus, Copper : Zinc : Nickel = 63 : 48 : 14
36. Ram swims in an 80 m long pool. He covers 160 m in one minute by swimming from one end to the other and back, along the same straight path. Find his average speed.
A. 2.07 ms-1
B. 2.60 ms-1
C. 3.67 ms-1
D. 2.67 ms-1
Solutions
Total distance covered = 160 m
Total time taken = 1 minute = 60 s
Average speed = Total distance/Total time taken
∴ His average speed = 160/60 = 2.67 ms-1
37. The focal length of a lens is 50 centimetre. Its power is:
A. 50 Diopter
B. 1 Diopter
C. 10 Diopter
D. 2 Diopter
Solutions
The Correct Answer is Option 4 i.e 2 Diopter.
The Focal length of a lens is 50 centimetre then its power is 2 Diopter.
Formula for Power of Lens:
P = 1 / f
where P is a power of lens measured in Diopters (D)
f is a focal length which is given in centimeter (m).
50 cm = 50*10-2 m
Calculation:
P = 1 / f
P = 1 / (50*10-2)
P = 2
Power, P = 2 Diopter.
38. The host city for the 8th annual Global Entrepreneurship Summit (GES – 2017) was:
A. Mysore
B. Banglore
C. Chennai
D. Hyderabad
Solutions
The Correct Answer is Option 4 i.e Hyderabad.
- The host city for the 8th annual Global Entrepreneurship Summit (GES – 2017) was Hyderabad.
| Global Entrepreneurship Summit | Year | Host City |
| 1st Annual Global Entrepreneurship Summit | 2010 | Washington D.C |
| 2nd Annual Global Entrepreneurship Summit | 2011 | Istanbul, Turkey |
| 3rd Annual Global Entrepreneurship Summit | 2012 | Dubai, UAE |
| 4th Annual Global Entrepreneurship Summit | 2013 | Kuala Lumpur, Malaysia |
| 5th Annual Global Entrepreneurship Summit | 2014 | Marrakesh, Morocco |
| 6th Annual Global Entrepreneurship Summit | 2015 | Nairobi, Kenya |
| 7th Annual Global Entrepreneurship Summit | 2016 | Palo Alto, California |
| 8th Annual Global Entrepreneurship Summit | 2017 | Hyderabad, India |
| 9th Annual Global Entrepreneurship Summit | 2019 | The Hague, Netherlands |
39. The mass of the earth is ______.
A. 6 × 1023 kg
B. 6 × 1024 kg
C. 6 × 1025 kg
D. 6 × 1022 kg
Solutions
The Correct Answer is Option 2 i.e 6 × 1024 kg.
The Mass of the Earth is 5.972 x 1024 kg and it gets converted to 6 x 1024 kg because of decimal point greater than 5.
| Mass of the Earth | 6 x 1024 kg |
| Radius of the Earth | 6,371 km |
| Earth Distance from the Sun | 151.85 million km |
| Surface Area of the Earth | 510.1 million km2 |
| Density of the Earth | 5.51 g / cm3 |
40. In a code language, FLUTE is written as 62105. What is the code for HARMONICA?
A. 918354931
B. 818254931
C. 818354931
D. 818354932
Solutions
The logic followed here is that each alphabet is coded as second number of its positional value.
F (06) → 6;
L (12) → 2;
U (21) → 1;
T (20) → 0;
E (05) → 5;
Similarly,
H (08) → 8;
A (01) → 1;
R (18) → 8;
M (13) → 3;
O (15) → 5;
N (14) → 4;
I (09) → 9;
C (03) → 3;
A (013 → 1;
Hence, ‘HARMONICA’ is coded as ’818354931’
41. If a bicycle of mass 10 kg moves at a speed of 20 m/s then the kinetic energy of the bicycle is:
A. 2000 J
B. 400 J
C. 4000 J
D. 200 J
Solutions
The Correct Answer is Option 1 i.e 2000 J
Formula of Kinetic Energy:
Kinetic Energy = 1 / 2 × m × v2
Calculation:
Mass, m = 10 kg
Speed, v = 20 m/s
Kinetic Energy = 1 /2 × 10 × (20)2
K.E = 1 / 2 × 10 × 400
K.E = 5 × 400
Kinetic Energy = 2000 J
42. Variable valency is exhibited by _____.
A. Valence elements
B. Transition element
C. Group elements
D. Alkaline elements
Solutions
The correct answer is Option 2, i.e Transition Elements.
- There are elements which differ in the capacity to combine with other elements.
- This depends on the nature of the reaction.
- The property of such kind of elements is called variable valency.
- For example, the iron in ferrous oxide exhibits a valency of +2, whereas in ferric oxide, it has a valency of +3.
- The transition elements are those elements having a partially filled d or f subshell in any common oxidation state.
- The term “transition elements” most commonly refers to the d-block transition elements.
- Variable valency is thus exhibited by the Transition elements due to partially filled subshells.
43. According to the World Bank, what is India’s position among the world economies based on the year 2017?
A. 7
B. 9
C. 6
D. 4
Solutions
The correct answer is Option 3, i.e 6.
- In 2017, India had emerged as the sixth largest economy, while France was pushed to the seventh place in the global GDP league table.
- India became the fifth-largest economy in 2019, overtaking the United Kingdom and France.
- India ranks third when GDP is compared in terms of purchasing power parity at $11.33 trillion.
44. The Chief Minister of Goa as of March 2018. Manohar Parrikar, belongs to:
A. Janta Dal Party
B. Indian National Congress
C. Bharatiya Janata Party
D. CPI
Solutions
The Correct Answer is Option 3 i.e Bharatiya Janta Party.
- The Chief Minister of Goa as of March 2018. Manohar Parrikar, belongs to Bharatiya Janata Party.
- Here is the list of Chief Ministers of Goa with respective party and year of their administration.
| Party | Chief Minister of Goa | Year |
| Indian National Congress | Pratapsingh Rane | Jan 1980 – Jan 1985,Jan 1985 – May 1987,May 1987 – Jan 1990,Jan 1990 – Mar 1990,Dec 1994 – Jul 1998,Feb 2005 – Mar 2005,Jun 2005 – Jun 2007. |
| Ravi S Naik | Jan 1991 – May 1993,Apr 1994 – Apr 1994 | |
| Wilfred de Souza | May 1993 – Apr 1994,Apr 1994 – Dec 1994. | |
| Luizinho Faleiro | Nov 1998 – Feb 1999,Jun 1999 – Nov 1999. | |
| Digambar Kamat | Jun 2007 – Mar 2012. | |
| Bharatiya Janata Party | Manohar Parrikar | Oct 2000 – Jun 2002,Jun 2002 – Feb 2005,Mar 2012 – Nov 2014,Mar 2017 – Mar 2019. |
| Laxikant Parsekar | Nov 2014 – Mar 2017. | |
| Pramod Sawant | Mar 2019 – Present |
45. In the circle below, chord 
is extended to meet the tangent 
at D. If = 24 cm = 9 cm, what is the length of 
?
A. 4√6 cm
B. 3 cm
C. 5 cm
D. 4 cm
Solutions
Let, length of BD be x cm
According to the question,
BD × AD = DE2
⇒ BD × (BD + AB) = DE2
⇒ x × (x + 24) = 92
⇒ x2 + 24x – 81 = 0
⇒ x2 + 27x – 3x – 81 = 0
⇒ x(x + 27) – 3(x + 27) = 0
⇒ (x + 27) (x – 3) = 0
⇒ x = 3 or – 27
∴ Length of BD = 3 cm
46. Vessels are the major water conducting cells in:
A. Fungi
B. Angiosperms
C. Bryophyta
D. Thallophyta
Solutions
The Correct Answer is Option 2 i.e Angiosperms.
- Wood vessels are the chief water-conducting elements of angiosperms.
- In contrast to the tracheids the final walls of the single vessels are perforated or, much more so, completely resolved.
| Fungi | 1. It is a single cell or multicellular organism. 2. Example: Ascomycota. |
| Angiosperms | 1. It is a flowering plants. 2. Vessels are the major water conducting cells in Angiosperms. 3. Example: Maize. |
| Bryophyta | 1. They are non – vascular land plants. 2. Vessels are absent in Bryophyta. 3. Example: Mosses. |
| Thallophyta | 1. They are undifferentiated algae. 2. Vessels are absent in Thallophyta. 3. Example: Spirogyra. |
47. If YELL is coded as 2551212, then what will be the code of LENT?
A. 1251421
B. 1251420
C. 1251620
D. 1351420
Solutions
Y → 25;
E → 5;
L → 12;
L → 12;
Similarly,
L → 12;
E → 5;
N → 14;
T → 20
Hence, ‘LENT’ will be coded as ‘1251420’.
48. Sarathi deposited Rs. 3,125 in a bank which promised 8% simple interest per annum. If Sarathi kept the money with the bank for 5 years, he will earn an interest of:
A. Rs. 1,280
B. Rs. 1,290
C. Rs. 1,250
D. Rs. 1,240
Solutions
Principal (p) = 3125
Rate of interest (r) = 8%
Time (t) = 5 years
∴ Interest earned by him = (p × r × t)/100
= (3125 × 8 × 5)/100 = 125000/100 = Rs. 1250
49. Which of the following numbers is divisible by 12?
A. 73508
B. 63508
C. 83508
D. 93508
Solutions
Concept
Any number is divisible by 3 if the sum of all digits of the number is divisible by 3.
Any number is divisible by 4 if the last 2 digits of the number are divisible by 4.
Solution
Here, last two digits of all given numbers are 08. Hence, all numbers are divisible by 4.
Now, we have to check divisibility by 3.
73508 = 7 + 3 + 5 + 0 + 8 = 23 (Not divisible by 3)
63508 = 6 + 3 + 5 + 0 + 8 = 22 (Not divisible by 3)
83508 = 8 + 3 + 5 + 0 + 8 = 24 (Divisible by 3)
93508 = 9 + 3 + 5 + 0 + 8 = 25 (Not divisible by 3)
Hence, 83508 is divisible by 12.
50. Who among the following was appointed as the UN Environment’s Goodwill Ambassador for India in November 2017?
A. Vidya Balan
B. Dia Mirza
C. Sonakshi Sinha
D. Rekha
Solutions
The Correct Answer is Option 2 i.e Dia Mirza.
- Dia Mirza was appointed as the UN Environment’s Goodwill Ambassador for India in November 2017.
- On 29th November 2017, Former Miss Asia Pacific, Actor, Producer, Entrepreneur and Environmentalist, Dia Mirza was appointed as UN Environment’s Goodwill Ambassador for India.
- Dia has supported her efforts in the field of social change, conservation and environment.
- As a Goodwill Ambassador, Dia will work with the United Nations to expand areas including clean air, clean seas, wildlife protection and climate change.
51. ______ is not the same as reproduction.
A. Budding
B. Fission
C. Multiple fission
D. Regeneration
Solutions
The Correct Answer is Option 4 i.e Regeneration.
| Budding | 1. A new organism developed from the mother plant or a bud due to cell division is called as Budding. Example: Hydra. |
| Fission | 1. Some cells in plants undergoes mitotic cell division to produce new organisms is called as Fission. Example: Bacteria. |
| Multiple Fission | 1. Some cells in plants undergoes several mitotic cell division to produce new organisms is called as Fission. Example: Protozoa |
| Regeneration | 1. All parts of plant can be regenerated through cell division is called as Regeneration. 2. Regeneration is not same as reproduction. 3. Example: Jelly Fish. |
52. Who is the proponent and propagandist of the “Art of Living”:?
A. Sri Sri Ravi Shankar
B. Swaminarayan
C. Sahajanand Swami
D. Pandit Ravi Shankar
Solutions
The Correct Answer is Option 1 i.e Sri Sri Ravi Shankar.
Sri Sri Ravi Shankar is the proponent and propagandist of the “Art of Living”.
| Sri Sri Ravi Shankar | 1. Gurudev Sri Sri Ravi Shankar founded the Art of Living as an international, non-profit, educational and humanitarian organization. 2. Ravi Shankar co-funded the International Association for Human Values (IAHV) a sister organization of Art of Living. |
| Swaminarayan / Sahajanand Swami | 1. Swaminarayan is also known as Sahajanand Swami. 2. He was the founder of Swaminarayan Sampradav. |
| Pandit Ravi Shankar | 1. He was an Bengali Indian Musician and a composer of Hindustani Classical Music. |
53. Where was the 48th International Film Festival of India held in 2017?
A. Delhi
B. Goa
C. Mumbai
D. Hyderabad
Solutions
The Correct Answer is Option 2 i.e Goa.
- The 48th International Film Festival of India held at Goa in 2017.
| Delhi | 1. International Film Festival of India was held in New Delhi in 2nd to 12th, 24th, 27th, 29th, 31st, 33rd and 34th Year of International Film Festival of India. |
| Goa | 1. Since 2004, starting from the 35th edition of International Film Festival of India was held at Goa as permanent venue. |
| Mumbai | 1. International Film Festival of India was held in Mumbai in 1st and 26th Year of International Film Festival of India. |
| Hyderabad | 1. International Film Festival of India was held in Hyderabad in 30th Year of International Film Festival of India. |
54. Which of the following shapes are combined to form this shape?
A. D
B. B
C. C
D. A
Solutions
- Hence, answer figure D is combined to form the given shape.
55. Who among the following won a gold medal at 2017 World Para Swimming Championship?
A. Curtis Lovejoy
B. Tucker Dupree
C. Jessica Long
D. Kanchanmala Pande
Solutions
The correct answer is Option 4, i.e Kanchanmala Pande.
- Kanchanmala Pande, who hails from Amravati, won a gold medal at 2017 and thus became the first Indian to win gold at World Para Swimming Championship.
- Curtis Lovejoy was inducted into the Atlanta Sports Hall of Fame in the United States of America.
- Tucker Dupree is an American swimmer who has won three medals at the 2012 Paralympic Games and one at the 2016 Paralympic Games.
- Jessica Long has held multiple world records and has won multiple gold medals over four Summer Paralympics.
56. Pipe A can fill an empty cistern in 5 hours while Pipe B takes 6.25 hours to fill it. The two pipes are opened simultaneously when the cistern is empty, but Pipe B is turned off after some time as a result of which the cistern is filled in 3.4 hours. For how many hours was Pipe B opened?
A. 1.5
B. 1
C. 2
D. 2.5
Solutions
Suppose, pipe B was open for x hours
According to the question,
3.4/5 + x/6.25 = 1⇒3.4×1.25+x6.25=1
⇒ 4.25 + x = 6.25
⇒ x = 2
∴ Pipe B was open for 2 hours
ALTERNATE METHOD
Formula Used:
Efficiency × Time taken = Total capacity of Cistern
Total capacity of Cistern = LCM of time taken
Calculation:
Capacity of a Cistern = LCM of 5 and 6.25
⇒ Capacity of a Cistern = 25 units
Efficiency of pipe A,
⇒ 25/5 = 5 units/hour
Efficiency of pipe B,
⇒ 25/6.25 = 4 units/hour
Pipe B is turned off after some, and cistern filled in 3.4 hours,
Which mean pipe A worked for total 3.4 hours,
Total units filled by pipe A,
⇒ 3.4 × 5 = 17 units
Remaining units to be filled by pipe B,
Remaining units,
⇒ 25 – 17 = 8 units
Time taken by pipe B to fill 8 units,
⇒ 8/4 = 2 hours.
∴ Pipe B was open for 2 hours
57. A 112 ft tall Shiva statue (Adiyogi) was unveiled on 24th February 2017 in Tamil Nadu by
A. Ramvilas Paswan
B. Ram Nath Kovind
C. Rajnath Singh
D. Narendra Modi
Solutions
The Correct Answer is Option 4 i.e Narendra Modi.
- A 112 ft tall Shiva statue (Adiyogi) was unveiled on 24th February 2017 in Tamil Nadu by Narendra Modi.
- It is funded by Isha Foundation and founded by popular yoga guru Jaggi Vasudev.
- The Main reason behind the statue for 112 feet tall because there are 112 chakras in the human system in which we work to explore 112 dimension of Life.
58. The ____ in India are generally known as ‘Tidal Forests’.
A. desert forests
B. mountain forests
C. dry lands
D. wetlands
Solutions
The correct answer is Option 4, i.e Wetlands.
- The mangrove forests or wetlands are called by various names like tidal forests, coastal woodlands, walking forests in the sea, roots of the sea or oceanic rainforests.
- Wetlands occur where water meets land.
- They include mangroves, peatlands and marshes, rivers and lakes, deltas, floodplains and flooded forests, rice-fields, and even coral reefs.
- Wetlands exist in every country and in every climatic zone, from the polar regions to the tropics, and from high altitudes to dry regions.
59. The ratio of chairs to tables in an office is 9 : 7 If there are 42 more chairs than tables, find the number of chairs in the office.
A. 189
B. 215
C. 147
D. 200
Solutions
Let, number of chairs in office be 9x and number of tables be 7x
According to the question,
9x – 7x = 42
⇒ 2x = 42
⇒ x = 21
∴ Number of chairs in the office = 9 × 21 = 189
60. A ball thrown up vertically returns to ground after 12 seconds. Find the velocity with which it was thrown up. (g = 10ms-2)
A. 10 ms-1
B. 125 ms-1
C. 12.5 ms-1
D. 60 ms-1
Solutions
The correct answer is Option 4, i.e 60 ms-1
- Time to reach Maximum height = 12/2 = 6 s
- v = 0 (at the maximum height)
- a = 10 m s-2
- Using, v = u + at, we get
- 0 = u – 10 × 6 s
- or, u = 60 ms-1
61. ‘Alum’ is an example of:
A. Flake salt
B. Table salt
C. Single salt
D. Double salt
Solutions
The Correct Answer is Option 4 i.e Double salt.
| Flake Salt | 1. Flake salt is also called as Flaked Sea Salt. 2. It has less minerals so that it has more salt flavour. |
| Single Salt / Table Salt | 1. The salt which has only one cation or one anion is called as Single Salt. Example: 1. Sodium Chloride is also called as Simple salt. 2. Chemical formula of Sodium Chloride is NaCl. |
| Double Salt | 1. The salt which has more than one cation or anion is called as Double Salt. Example: 1. Alum is also called as Potash Alum. 2. Chemical formula of Potash Alum is KAI(SO4)2.12H2O 3. It is mostly used in medicine and water treatment processes. |
62. Sunny and Paula can complete a piece of work together in 12 hours. Paula takes 18 hours to complete work alone, another individual, Jane, takes 45 hours to complete the same piece of work alone. How many hours would it take sunny and Jane to complete the same work together?
A. 18
B. 16
C. 15
D. 20
Solutions
Suppose, Sunny alone can complete the task in x hours
According to the question,
1/x + 1/18 = 1/12
⇒ 1/x = (3 – 2)/36
⇒ x = 36 hours
Sunny alone can complete the task in = 36 hours
Suppose, Sunny and Jane together can complete the task in k hours
According to the question,
1/k = 1/36 + 1/45
⇒ 1/k = (5 + 4)/180
⇒ 1/k = 9/180
⇒ k = 20
∴ Sunny and Jane together can complete the task in 20 hours
63. Who is the Director of the movie ‘Padmavaat’ released in 2018?
A. Rajkumar Hirani
B. Sanjay Leela Bhansali
C. Karan Johar
D. S. S. Rajamouli
Solutions
The Correct Answer is Option 2 i.e Sanjay Leela Bhansali.
- Sanjay Leela Bhansali is the Director of the movie ‘Padmavaat’ released in 2018.
| Director Name | Movies released in 2018 |
| Rajkumar Hirani | 1. Sanju is the movie which was directed by Rajkumar Hirani in 2018. 2. He was directed 5 movies from 2003 to present. |
| Sanjay Leela Bhansali | 1. Padmaavat is the movie which was directed by Sanjay Leela Bhansali in 2018. 2. He was directed 10 movies from 1996 to present. |
| Karan Johar | 1. Lust Stories, Raazi, Dhadak,Simmba are movies which was directed by Karan Johar in 2018. 2.He was directed 9 movies from 1998 to present. |
| S. S. Rajamouli | 1. There is no movies was directed by S. S. Rajamouli in 2018. 2. He was directed 12 movies from 2001 to present. |
64. Who among the following is the Union Minister of Human Resource Development, Government of India, as of 1 March 2018?
A. Radha Mohan Singh
B. Prakash Javadekar
C. Harsha Vardhan
D. Smriti Irani
Solutions
The Correct Answer is Option 2 i.e Prakash Javadekar.
Prakash Javadekar is the Union Minister of Human Resource Development, Government of India, as of 1 March 2018.
| Radha Mohan Singh | 1. Radha Mohan Singh was the Minister of Agriculture and Farmers Welfare from 2014 to 2019. |
| Prakash Javadekar | 1. Prakash Javadekar was the Minister of State for Parliamentary Affairs in 2014. 2. Prakash Javadekar was the Minister of Human Resource Development from 2016 to 2019. 3. Prakash Javadekar is currently Minister of Information & Broadcasting, Environment, Forest & Climate Change and Heavy Industries & Public Enterprises from 2019 to present. 4. The current HRD minister is Ramesh Pokhriyal. |
| Harsh Vardhan | 1. Harsh Vardhan was the Minister of Environment, Forest and Climate Change from 2017 to 2019. 2. Harsh Vardhan is currently serving in these following departments: 1. Chairman of WHO Executive board from 2020 to present, 2. Minister of Health and Family Welfare from 2019 to present, 3. Minister of Science and Technology from 2014 to present and 4. Minister of Earth Sciences from 2014 to present |
| Smriti Irani | 1. Smriti Irani was the Minister of Human Resource Development from 2014 to 2016. 2. Smriti Irani was the Minister of Information and Broadcasting from 2017 to 2018. 3. Smriti Irani is currently serving as Minster of Women and Child Development from 2019 and Minister of Textiles from 2016 to present. |
65. Name the Indian sportsperson who won gold in the Girls Under 12 category at the World Cadets Chess Championship, in 2017
A. Padmini Rout
B. Divya Deshmukh
C. Abhimanyu Puranik
D. Aryan Chopra
Solutions
The Correct Answer is Option 2 i.e Divya Deskmukh.
| Padmini Rout | 1. Padmini Rout is an Indian Chess player. 2. She won Gold in Girls under 12 category at the Asian in 2006. 3. She won Gold in Girls under 14 category at the World Cadets Chess Championship in 2008. |
| Divya Deshmukh | 1. Divya Deshmukh is an Indian Chess player. 2. She won Gold in the Girls under 12 and under 10 category at the World Cadets Chess Championship in 2017 and 2014 respectively. |
| Abhimanyu Puranik | A1. bhimanyu Puranik is an Indian Chess player. 2. He won Silver in under 20 category at the World Junior Boys and Girls in 2018. |
| Aryan Chopra | 1. Aryan Chopra is an Indian Chess player. 2. He is the India’s fifth youngest Grandmaster. 3. He has won Abu Dhabi Chess Championship Masters Tournament. |
66. Which pattern will the giventransparent sheet resemble when it is folded at the dotted line?
A. D
B. B
C. C
D. A
Solutions
- Hence, answer figure A is the pattern that the given transparent sheet will resemble when it is folded at the dotted line.
67. Select the horizontal mirror image of LICK from option figures.
A. C
B. A
C. B
D. D
Solutions
- Hence, answer figure C is the correct horizontal mirror image of LICK.
68. The volume of right circular cone, whose radius of the base is one-third of its altitude, and the volume of a hemisphere are equal. The ratio of the radii of the cone and the hemisphere is;
A. 
B. 2 : 3
C. 
D. 
Solutions
Let, radius of base of a right circular cone be r
⇒ Height of the right circular cone = 3r
Let, radius of the hemisphere be R
According to the question,
1/3 × π × r2 × 3r = 2/3 × π × R3
⇒ r3 = 2R3/3
⇒ (r/R)3 = 2/3
⇒ r/R = (2/3)1/3
∴ Ratio of the radii of the cone and the hemisphere
69. Consider the statement(s) and decide which of the given assumption(s) is/are implicit in the statement.
Statement:
“Shortage in rainfall results in crop failure” said the meteorologist
Assumptions:
I. Rainfall is a must for crop success.
II. Irrigation is much dependent on Rainfall
A. Neither I nor II is implicit
B. Both I and II are implicit
C. Only I is implicit
D. Only II is implicit
Solutions
Since the meteorologist emphasizes that a shortage in rainfall would result in crop failure, it can assumed that rainfall is a necessity to avoid the failure.
Therefore, assumption I is implicit.
However, nothing is mentioned or suggested about the relation between irrigation and rainfall.
Therefore, assumption II is not implicit.
Hence, only assumption I is implicit.
70. Find the odd one out.
A. B
B. D
C. C
D. A
Solutions
In each figure the arrow is on one of the sides of the polygon whereas in figure C arrow is on one of the corners of the polygon.
- Hence, figure C is the odd one among the given figures.
71. Pipes A and B, when working together can fill an empty tank in 24 hours. They work together for 8 hours and then B is stopped but A continued to work. It took a total of 28 hours to fill the tank. How long would it take A to fill the empty tank alone?
A. 30 hours
B. 29 hours
C. 28 hours
D. 31 hours
Solutions
Given:
A and B can fill an empty tank = 24 hours
A and B worked together for 8 hours and then B is stopped but A continued to work and it took 28 hours to fill the tank
Formula used:
Total work = Time × Efficiency
Calculations:
Suppose, A alone can fill the tank in x hours and B alone can fill the tank in y hours
According to the question,
1/x + 1/y = 1/24
⇒ 8/x + 8/y = 8/24 = 1/3
Also,
28/x + 8/y = 1
From above equations, we get,
20/x = 1 – 1/3
⇒ 20/x = 2/3
⇒ x = 30
∴ A alone can fill the tank in 30 hours
ALTERNATE METHOD
Let the efficiency of A be x and efficiency of B is y
Total tank fill by A and B together in an hour = x + y
The total capacity of the tank = 24(x + y) —-(1)
∵ In the second condition when B is closed after 8 hours and the tank is filled in 28 hours.
Tank fill by A in 28 hours = 28x
Tank fill by B in 8 hours = 8y
Total capacity of the tank = 28x + 8y —-(2)
From equation (1) and (2)
24(x + y) = 28x + 8y
⇒ x/y = 4/1
Efficiency of A = x = 4
Efficiency of B = y = 1
Total capacity of the tank = 24(x + y) = 120
Time taken by A to fill the tank alone = 120/4 = 30 hours
∴ A alone can fill the tank in 30 hours
72. Consider the given statement(s) and decide which of the given assumption(s) are implicit in the statement.
Statement:
Earlier there were many birds in the bird sanctuary.
Assumptions:
I. Birds migrate and come to the sanctuary during a particular period of the year
II. There were good water bodies in that area
A. Only II is implicit
B. Only I is implicit
C. Both I and II are implicit
D. Neither I nor II is implicit
Solutions
Bird sanctuaries provide natural habitats to the birds who take shelter here.
Therefore, it is safe to assume that the birds are migratory and stay in the sanctuary during a particular period of the year
Therefore, assumption I is implicit.
However, since the statement does not talk about water bodies at all, assumption II is not implicit.
Hence, only assumption I is implicit.
73. Vandana is the daughter of Vishal and Vanita. Amit is the son of Vanita’s brother. Who is Vandana to Amit?
A. Brother
B. Cousin
C. Father
D. Nephew
Solutions
Preparing the family tree using the following symbols:
- Hence, Vandana is cousin of Amit.
74. Monika’s father was 38 years of age when she was born while her mother was 36 years old when her sister four years younger to her was born. What is the difference between the ages of her parents?
A. 8 years
B. 4 years
C. 6 years
D. 2 years
Solutions
Given:
Monika’s father was 38 years of age when she was born while her mother was 36 years old when her sister four years younger to her was born.
Concept used:
We will be using the fundamental concept of ratio.
Calculation:
Let, the present age of Monika be x years
⇒ Present age of Monika’s sister = (x – 4) years
Present age of Monika’s father = (38 + x) years
Present age of Monika’s mother = (36 + x – 4) = (32 + x) years
∴ Difference between the ages of her parents = (38 + x) – (32 + x) = 6 years
75. _______Theory of Evolution tells us how life evolved from simple to more complex forms.
A. Darwin’s
B. Wallace
C. Mendel’s
D. Lamarck’s
Solutions
The correct answer is option 1, i.e. Darwin’s theory of evolution.
Key Points
Darwin’s theory of evolution tells us how life evolved from simple to more complex form.
- Evolution is a process of change happening over generations.
- Darwin published his theory of evolution with evidence in his book ‘On the Origin of Species’ in 1859.
- The book introduced the scientific theory of evolution over the course of generations through the process of Natural Selection.
| Name | Discovery |
| Alfred Russel Wallace | He independently proposed the theory of evolution through natural selection.His theory was jointly published with Charles Darwin’s writings in 1859. |
| Gregor Johann Mendel | Founder of the modern science of genetics. |
| Jean Baptiste Lamarck | Proposed the idea of natural laws in biological evolution. |
76. A wooden crate 1.8 m long, 1.5 m wide and 1.2 m in height is filled with iron cubes that are 6 cm wide. Find the maximum number of iron cubes that can be fitted in the crate.
A. 13,500
B. 15,000
C. 14,500
D. 14,000
Solutions
Length of the wooden crate = 1.8 m = 180 cm
Width of the wooden crate = 1.5 m = 150 cm
Height of the wooden crate = 1.2 m = 120 cm
Let, number of iron cubes can be fitted in the crate be x
According to the question,
x × 63 = 180 × 150 × 120
⇒ x = 3240000/216
⇒ x = 15000
∴ 15000 iron cubes can be fitted in the crate
77. What is the next term in the given series?
22C, 42F, 62I, ___
A. 82L
B. 82N
C. 82M
D. 82O
Solutions
Hence, 82L is the next term in the given series.
78. A boy standing at the top of a 20-metre-high tower drops a stone. Assuming g = 10 m/s2, the velocity with which the stone hit the ground is:
A. 10 m/s
B. 20 m/s
C. 15 m/s
D. 25 m/s
Solutions
The correct answer is option 2, i.e. 20 m/s.
A boy standing at the top of the tower drops a stone from the height 20 m.
Velocity at which it will hit the ground is calculated as,
Given:
Height of the tower h = 20 m
g = 10 m/s2
Initial Velocity u = 0 (drops)
Final Velocity v =?
Using Equation of motion,
v2 – u2 = 2gh
v2 = u2 + 2gh
v2 = (0)2 + 2 ×10 × 20
v2 = 400
v = 20 m/s
The stone touches the ground at the velocity of 20 m/s when drops from the height of 20 m.
79. The Government of India has tied up with which of the following companies to support Skill India in the automobile industry?
A. Ashok Leyland
B. Tata Motors
C. Maruti Suzuki
D. Mahindtra & Mahindra Ltd.
Solutions
The Correct Answer is Option 3 i.e Maruti Suzuki.
- The Government of India has tied up with Maruti Suzuki to support Skill India in the automobile industry.
- Ministry of Skill Development and Maruti Suzuki enters into an agreement to support Skill India in Automobile industry.
- This agreement objective is to provide a unique opportunity to the youth to acquire skills related to automobile and manufacturing industry through the “Learn and Earn” approach.
- On 18th December 2017, the flexi MoU was signed by Shri Vijay Kumar Dev, Director General, DGT (Ministry of Development and Entrepreneurship) and Shri Mukesh Kumar Gupta, Vice President (Maruti Suzuki India Limited).
80. Which of the following effects is NOT produced by current?
A. Chemical effect
B. Contraction effect
C. Heating effect
D. Magnetic effect
Solutions
The correct answer is Option 2, i.e Contraction Effect.
- Contraction is a method in Chemistry. It is related to Lanthanoid.
- Lanthanoid contraction: The gradual decrease in atomic and ionic radii of lanthanoids with the increase in atomic number is called lanthanoid contraction. It has a definite effect on the properties of lanthanoids.
- Chemical Effect, Heating Effect, Magnetic Effect are all produced by current.
81. _______ element has two orbits that are completely filled.
A. He
B. Ar
C. Kr
D. Ne
Solutions
The correct answer is Ne or Neon.
- The element which has two shells both of which are completely filled with electrons is Neon with electronic configuration (2,8).
- Helium (He) only has 2 electrons and therefore it has a configuration of 1s2.
- Argon (Ar) electron configuration will be 1s22s22p63s23p6.
- Electron configuration of Krypton (Kr) : 1s22s22p63s23p63d104s24p6.
82. Mark had to travel 220 km in 4.5 hours, using a train that travels at the speed 60 km/h or a bus that travels at the speed of 40 km/h, or any combination of the two modes of transport. For how long did he travel by bus?
A. 1 hour
B. 1 hour 30 minutes
C. 2 hours 30 minutes
D. 2 hours
Solutions
Suppose, he traveled by bus for x hours
According to the question,
x × 40 + (4.5 – x) × 60 = 220
⇒ 40x + 270 – 60x = 220
⇒ 20x = 50
⇒ x = 50/20
⇒ x = 2.5
∴ He traveled by bus for 2.5 hours = 2 hours 30 minutes
83. In the modern periodic table, periods _____ and _____ contain Lanthanoides and actinoides
A. 3 and 4
B. 6 and 7
C. 4 and 5
D. 5 and 6
Solutions
The Correct Answer is Option 2 i.e 6 and 7.
| Period | Elements |
| 3 | 1. This period contains 8 elements. 2. Elements starts from Sodium (Na) to Argon (Ar). |
| 4 | 1. This period contains 18 elements. 2. Elements starts from Potassium (K) to Krypton (Kr). |
| 5 | 1. This period contains 18 elements. 2. Elements starts from Rubidium (Rb) to Xenon (Xe). |
| 6 | 1. This period contains 32 elements which includes Lanthanaides. 2. Lanthanaides will be in 6th period between Barium (Ba) and Hafnium(Hf). 3. Elements starts from Caesium (Cs) to Radon (Rn). |
| 7 | 1. This period contains 32 elements which includes Actinides. 2. Actinides will be in 7th period between Radium(Ra) and Rutherfordium (Rf). 3. Elements starts from Francium (Fr) to Oganesson(Og). |
84. Which pattern most closely resembles the following figure?
A. B
B. A
C. D
D. C
Solutions
The question figure has a triangle which is at the left of two opposite facing arrows.
The triangle does not touch the arrows and the arrows are outside the rectangle.
- Hence, the pattern given in answer figure A is the pattern that most closely resembles the question figure.
85. Which of the following does not belong to this group?
a. Circle
b. Volume
c. Square
d. Rectangle
A. C
B. B
C. D
D. A
Solutions
Circle, Square and Rectangle are figures where as Volume is the quantity that represents the measure of space within a three dimensional figure.
Hence, Volume does not belong to the group.
86. Meenu goes to the grocery shop just adjacent to her home on the right side. Her home’s entrance faces East. After entering the shop she turns to her right to start walking towards an aisle that has fresh produce. Which direction is she walking?
A West
B. North
C. East
D. South
Solutions
Drawing the diagram as per the directions given.
- Hence, Meenu is facing North direction.
87. The square of a natural number (other than 1) is either a multiple of 3 or exceeds a multiple of 3 by: _____
A. 3
B. 2
C. 4
D. 1
Solutions
The square of a natural number (other than 1) is either a multiple of 3 or exceeds a multiple of 3 by 1
Example:
⇒ 22 = 4 = 3 × 1 + 1
⇒ 42 = 16 = 3 × 5 + 1
⇒ 62 = 36 = 3 × 12
It is a property of square numbers
88. 3 + [32 ÷ 8 × 52 ÷ (4 + 9)] = ?
A. 19
B. 20
C. 21
D. 18
Solutions
Simplify using BODMAS: Bracket – Of – Division – Multiplication – Addition – Subtraction
3 + [32 ÷ 8 × 52 ÷ (4 + 9)]
⇒ 3 + [32 ÷ 8 × 52 ÷ 13]
⇒ 3 + [4 × 4]
⇒ 3 + 16
⇒ 19
89. _____ reaction occurs when Sodium Sulphate reacts with Barium Chloride.
A. Single combination
B. Single displacement
C. Double displacement
D. Double combination
Solutions
The Correct Answer is Option 3 i.e Double displacement.
| Single Combination reaction | 1. When two or more reactants which combines to form a single product is called as Combination reaction. 2. Its form will be: a + b → ab. 3. Example: 2Na + Cl2 → 2NaCl. |
| Single Displacement reaction | 1. When high reactive element displaces a less reactive element from its aqueous solution is called as Displacement reaction. 2. Its form will be: a + bc → ac + b. 3. Example: Zn + CuSO4 → ZnSO4 + Cu. |
| Double Displacement reaction | 1. When ions gets exchanged between two reactants which will form a new compound is called as Double Displacement reaction 2. .Its form will be: ab + ca → ac + ba. 3. Example: Bacl2 + Na2SO4 → BaSO4 + 2NaCl. |
90. Below is the volume of production of sugar by company X and Y over 5 years.
The production volume denoted in lakh tones
What is the difference in the total production of company X and Y together in years 2000 and 2004?
A. 20,000 tones
B. 20,00,000 tones
C. 40,00,000 tones
D. 40,000 tones
Solutions
Total production of X and Y in 2000 = (40 + 40) lakh tonnes = 80 lakh tonnes
Total production of X and Y in 2004 = (60 + 60) lakh tonnes = 120 lakh tonnes
∴ Required difference = (120 – 80) lakh tonnes = 40,00,000 tonnes
91. Select the option that can replace the question mark (?) in the following series.
A. B
B. D
C. A
D. C
Solutions
The logic followed here is:
In the question figure the second image is the mirror image of the first figure on axis which is in line with the base of triangle (horizontal axis) in figure 1.
Similarly,
In the question figure the fourth image will be the mirror image of the third figure on axis which is in line with the base of triangle (vertical axis) in figure 3.
Hence, answer figure A will be the next image in the given series.
92. The operating costs of a company are given below.
| 2016 | 2017 | |
| LoanInterest | 25% | 25% |
| Salary | 50% | 55% |
| Tax | 25% | 20% |
The total money spent on operations in 2016 is Rs. 120 lakhs and the total money spent in 2017 is Rs. 150 lakhs. By how much was the salary in 2017 higher than that of 2016?
A. Rs. 5 lakhs
B. Rs. 10 lakhs
C. Rs. 22.5 lakhs
D. Rs. 20 lakhs
Solutions
Total operating cost in 2016 = Rs. 120 lakhs
⇒ Salary in 2016 = Rs. (120 × 50/100) lakhs = Rs. 60 lakhs
Total operating cost in 2017 = Rs. 150 lakhs
⇒ Salary in 2017 = Rs. (150 × 55/100) lakhs = Rs. 82.5 lakhs
∴ Salary in 2017 higher than that of 2016 by = Rs. (82.5 – 60) lakhs = Rs. 22.5 lakhs
93. In a code language, VEIL is written as 2592. What is the code for MEET?
A. 4550
B. 3660
C. 3551
D. 3550
Solutions
The logic followed here is that each alphabet is coded as second number of its positional value.
V (22) → 2;
E (05) → 5;
I (09) → 9;
L (12) → 2;
Similarly,
M (13) → 3;
E (05) → 5;
E (05) → 5;
T(20) → 0;
Hence, ‘MEET’ is coded as ’3550’.
94. Fatehpur Sikri or the ‘City of Victory’ was ______ capital for 12 years.
A. Bahadur Shah’s
B. Babur’s
C. Akbar’s
D. Aurangzeb’s
Solutions
The Correct Answer is Option 2 i.e Akbar’s.
| Mughals | Capitals |
| Bahadur Shah’s | Old Delhi (Shahjahanabad) |
| Babur’s | Akhsikent |
| Akbar’s | Fatehpur Sikri |
| Aurangzeb’s | Old Delhi (Shahjahanabad) |
Fatehpur Sikri is a city in Agra, Uttar Pradesh and it was founded by Akbar.
Fatehpur Sikri or the ‘City of Victory’ was Akbar’s capital for 12 years.
In 1986, Fatehpur Sikri becomes one of the UNESCO’s World Heritage Site.
95. ______ is the metal used for making filaments of electric bulbs.
A. Iron
B. Tungsten
C. Silver
D. Nickel
Solutions
The Correct Answer is Option 2 i.e Tungsten.
| Metal | Uses |
| Iron | 1. Iron (26Fe) has its atomic number 26. 2. Red colour in blood is from the iron in haemoglobin, which helps to carry oxygen from the lungs to cells 3. Iron used to make electricity pylons, bicycle chains and rifle barrels. |
| Tungsten | 1. Tungsten (74W) has its atomic number 74. 2. Tungsten is used in filaments of incandescent light bulbs. 3. Tungsten is used to make counterfeit gold bars because of its density which is similar to that of gold. 4. Tungsten carbide is used in drill bits and mining tools. |
| Silver | 1. Silver (47Ag) has its atomic number 47. 2. Threads of Silver are used to operate touch screen devices because it is woven into gloves. 3. Light sensitive silver halides are used in photochromic glasses and photography. |
| Nickel | 1. Nickel (28Ni) has its atomic number 28. 2. Nickel-Chromium alloy is used in heating elements of toasters and electric ovens. 3. Nickel is used in making coins of many countries. 4. Nickel is one of the only four elements that will magnetic at 20 oC. |
96. A girl can cycle at 16 km/h and walk at 7 km/h. To cover a distance of 109 km, she takes 8.5 hours. How much distance did she cover on foot?
A. 17.5 km
B. 24.5 km
C. 21 km
D. 28 km
Solutions
Suppose, she walked for x hours
According to the question,
x × 7 + (8.5 – x) × 16 = 109
⇒ 7x + 136 – 16x = 109
⇒ 9x = 27
⇒ x = 3 hours
∴ Distance covered by foot = (7 × 3) = 21 km
97. A statement is followed by two arguments. Decide which of the arguments is are strong with respect to the statement.
Statement:
Every week schools should allow a free, full day of physical activity and games
Arguments:
I. Yes, giving them freedom will help them to interact with others and explore new avenues
II. No, there wouldn’t be discipline.
A. Neither I nor II is strong
B. Only argument II is strong
C. Only argument I is strong
D. Both I and II are strong
Solutions
If the time table includes a free period of time in a day or a week would give sufficient time and the necessary permission to ensure students can interact with each other and explore new avenues freely. Therefore, argument I is strong.
However, it is not necessary that there would not be any discipline during this free period.
Therefore, argument II is not strong.
Hence, only argument I is strong.
98. 144 ÷ [40 – {37 – (25 – 112 ÷ 7 of 4)}] = ?
A. 4
B. 2
C. 8
D. 6
Solutions
The Correct Answer is Option 4 i.e 6.
BODMAS (Bracket, Of, Division, Multiplication, Addition and Subtraction) is a rule used to perform mathematical expression. So priority is given first to bracket of division, multiplication, addition and subtraction.
Calculation based on BODMAS:
Step 1 : 7 of 4 = 7 x 4 = 28
Step 2 : 112/28 = 4
Step 3 : 25 – 4 = 21
Step 4 : 37 – 21 = 16
Step 5 : 40 – 16 = 24
Step 6 : 144/24 = 6
Answer : 6
99. The mean of three numbers is 20. The range of this data set is 12 while the difference between the two smallest numbers is 3. The greatest of the three natural numbers is:
A. 27
B. 28
C. 24
D. 25
Solutions
Let, the smallest number be x
⇒ The middle number = x + 3
⇒ The greatest number = x + 12
According to the question,
x + x + 3 + x + 12 = 3 × 20
⇒ 3x + 15 = 60
⇒ 3x = 45
⇒ x = 15
∴ The greatest of the three natural numbers = (15 + 12) = 27
100. If ‘+’ indicates mathematical action ‘-‘ and ‘×’ indicates mathematical action ‘÷’ then what is the value of ((75 + 25) × 5) × 10?
A. 1
B. 0
C. 3
D. -1
Solutions
| Symbol | + | × |
| Meaning | – | ÷ |
Given: ((75 + 25) × 5) × 10
On decoding: ((75 – 25) ÷ 5) ÷ 10
→ ((75 – 25) ÷ 5) ÷ 10
→ ((50) ÷ 5) ÷ 10
→ (10) ÷ 10
→ 1
Hence, on decoding the value of ((75 + 25) × 5) × 10 is 1.
