1.Dalton’s theory was based on the laws of:
A. Conservation of Momentum
B. Conservation of Mass
C. Conservation of Energy
D. Conservation of Charge
Solutions
The correct answer is Conservation of mass.
Key Points
- Dalton’s theory was based on the law of conservation of mass and the law of constant composition.
- It is also known as the law of constant composition and the law of multiple proportions.
- Dalton’s atomic theory states that all matter is composed of atoms and all compounds are composed of atomic combinations in defined ratios.
Additional Information
- Conservation of momentum: Conservation of momentum, the general law of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a system remains constant.
- Conservation of Energy: The law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. In other words, we can say that energy can neither be created nor destroyed – only converted from one form of energy to another.
- Conservation of Charge: The law states that the total amount of electric charge in a system does not change with time.
2. In August 2018, Hindalco’s wholly-owned subsidiary Novelis Inc. announced the acquisition of a global aluminium rolled products company that is headquartered in the US. Name the acquired company.
A. Century Aluminium
B. Alcoa Corporation
C. U.S Foil company
D. Aleris Corporation
Solutions
1.In August 2018, Hindalco’s wholly-owned subsidiary Novelis Inc. announced the acquisition of a global aluminium rolled products company Aleris Corporation that is headquartered in the US.
2. Kumar Mangalam Birla is the Chairman of Hindalco.
3. Aleris has its manufacturing facilities in Asia, Europe, and the US.
3. Select the option that is related to the third word on the same as the second word is related to the first word.Wait : Linger ∷ Bite:
A. Gnaw
B. Murmur
C. Hiss
D. Eat
Solutions
Wait and Linger are synonyms. Bite and Gnaw are also synonym.
Hence, Gnaw is the related word.
4. Find the value of √0.7.
A. 0.948
B. 0.598
C. 0.894
D. 0.836
Solutions
the value of √0.7 = 0.836
So, correct answer is 0.836
5. Which of the following is a reducible fraction?
A. 77/72
B. 105/112
C. 104/121
D. 5/49
Solutions
A reducible fraction is a ratio of two integers which have a common divisor. Thus, fraction 105/112 is reducible because 7 divides both 105 and 112. On the other hand, is irreducible. A fraction is no longer reducible when the numerator and the denominator are relatively prime.
6. If in a code, TRUCK is written as RPSAI, how will TOOL be written as in that code?
A. JMRJ
B. RJKM
C. RMMJ
D. RMJM
Solutions
The pattern followed here is,
Hence, “RMMJ” is the correct answer.
7. Who among the following was called the ‘Iron Chancellor’?
A. Napoleon Bonaparte
B. Genghis Khan
C. Otto von Bismarck
D. Adolf Hitler
Solutions
1.Otto von Bismarck was called the ‘Iron Chancellor’.
2. He was the German Chancellor.
3. Napoleon Bonaparte was a French Emperor known to have conquered much of Europe in the 19th century.
4. Genghis Khan was a Mongolian ruler.
5. Adolf Hitler was the leader of the Nazi party and was also the Chancellor of Germany.
8. If you invest Rs. 100 at 40% annual interest compounded quarterly, how much will you receive after one year?
A. Rs. 145.61
B. Rs. 146.41
C. Rs. 149.01
D. Rs. 148.11
Solutions
Short Trick:
Rate = 40/4 = 10%
⇒ A = 100 × 10/100 = 10
⇒ B = A × 10/100 = 1
⇒ C = B × 10/100 = 0.1
⇒ D = C × 10/100 = 0.01
⇒ Compound interest = 4A + 6B + 4C + D = 40 + 6 + 0.4 + 0.01
= 46.41
∴ Amount = 100 + 46.41 = Rs. 146.41
Detailed Solution:
As we know,
A = P (1 + R/100)t
P = 100
R = 40%
T = 1 year
If interest compounded quarterly, then
R = 40/4 = 10%
T = 4 × 1 = 4
A = P (1 + R/100)t
A = 100 × (1 + 10/100)4
A = 100 × (11/10) × (11/10) × (11/10) × (11/10)
A = 146.41
9. An object of mass 12 kg is at a certain height above the ground. If the potential energy of the object is 600 J, find the height at which the object is with respect to the ground. Given g = 10 ms-2
A. 5 m
B. 5 ms-2
C. 5 ms2
D. -5 m
Solutions
CONCEPT:
- Potential energy (PE): The energy possessed by a body by virtue of its position or configuration is called potential energy.
PE=mgh
Where, m = mass of the body, g = acceleration due to gravity and h = height of the body
CALCUATION:
Given that:
Mass (m) = 12 kg
Potential Energy (PE) = 600 J
Acceleration due to gravity (g) = 10 m/s-2
height (h) = ?
We know that, Potential Energy = mgh
h = Potential Energy/mg = 600/[12 × 10] = 5 m
Therefore, Height (h) = 5 m. So option 1 is correct.
10. Anusri is eleven years younger than Yashomati. Fifteen years from now, Yashomati’s age will be three times Anusri’s present age. What is Yashomati’s present age?
A. 21 years
B. 24 years
C. 20 years
D. 23 years
Solutions
Let Anusri be denaoted by ‘a’ and Yashomati by ‘y’
1) Anusri is eleven years younger than Yashomati.
11 + a = y
2) Fifteen years from now, Yashomati’s age will be three times Anusri’s present age.
15 + y = 3(a)
15 + y = 3a
y = 3a – 15
11 + a = 3a – 15
2a = 26
a = 13 and y = 13 + 11 = 24
Hence, present age of Yashomati is 24 years.
11. Pick the figure that will complete the given series.
A. A
B. B
C. D
D. C
Solutions
In the given series the next term will be a figure with square in the centre and two circle at its two horizontal sides.
- Hence, “Figure B” is the correct answer.
12. The average marks obtained by Suvir in 15 tests is 29. Ruchira is maintaining an average of 27 so far but has taken only 11 of the tests so far. How much does Ruchira have to score on an average in the remaining four tests to match Suvir’s performance?
A. 36
B. 35.5
C. 34.5
D. 35
Solutions
Average marks obtained by Suvir in 15 tests = 29
Sum of marks obtained by Suvir in 15 tests = 29 × 15 = 435
Average marks obtained by Ruchira in 11 tests = 27
Sum of marks obtained by Ruchira in 11 tests = 27 × 11 = 297
Remaining test of Ruchira = 15 – 11 = 4 tests
Ruchira have to score in 4 remaining tests are = 435 – 297 = 138 marks
Average marks in remaining 4 tests which have to score by Ruchira = 138/4 = 34.5
13. You are given a question and two statements. Identify which of the statements is/are necessary/sufficient to answer the question.
Question:
How many sons does X have?
Statements:
1. Y and Z are brothers of W.
2. The mother of Z is wife of W’s father.
A. 1 alone is sufficient while 2 alone is not sufficient
B. Neither 1 nor 2 alone is sufficient
C. Both 1 and 2 together are sufficient
D. 2 alone is sufficient while 1 alone is not sufficient
Solutions
Statement 1 :Y and Z are brothers of W.
No information is given about X. Hence, statement 1 alone is not sufficient to answer the question.
Statement 2: The mother of Z is wife of W’s father.
No information is given about X. Hence, statement 2 alone is not sufficient to answer the question.
Statement 1 & 2 combined together:
Since, no information is given about X. both the statement combined together are not sufficient to answer the question.
Hence, “neither statement 1 nor statement 2 alone is sufficient” is the correct answer.
14. Find the next figure for the given series:
A. A
B. B
C. C
D. D
Solutions
Here, each part in problem figure consists of an alphabet and its mirror image.
Hence, “Answer figure D” is the correct answer
15.
The above Venn diagram represent the students who play 3 sports M, N and L in a class.
Total number of students who play game M is:
A. 7
B. 11
C. 32
D. 21
Solutions
The total number of students who play game M is: 11 + 6 + 7 + 8 = 32.
Hence, 32 is the correct answer.
16. Which of the following statements is/are true?
A. Solid CO2 is known as dry ice.
B. The particles of liquid absorb energy from the surrounding to regain the energy lost during evaporation.C. Solid CO2 gets converted directly to the gaseous state.
A. All are false
B. A and C are false, B is true
C. A and C are true, B is false
D. All are true
Solutions
1.Solid carbon dioxide is known as dry ice.
2. The particles of liquid absorb energy from the surrounding to regain the energy lost during evaporation.
3. Solid CO2 gets converted directly to the gaseous state.
17. Find SP when MP = 160 and discount = 12%?
A. 140.80
B. 160.80
C. 132.80
D. 100
Solutions
Given, MP = 160 and Discount = 12%
SP = (100 – 12)% of MP
SP = 160 × (88/100) = 140.80
18. What are the roots of the equation 2x2 + 4x = 30?
A. 2, – 15
B. 6, 5
C. – 5, 3
D. 10, 3
Solutions
Root of the equation of 2x2 + 4x = 30
2x2 + 4x – 30 = 0
Divided by 2
x2 + 2x – 15 = 0
x2 + 5x – 3x – 15 = 0
x (x + 5) – 3 (x + 5) = 0
(x + 5) (x – 3) = 0
Taking,
(x + 5) = 0
x = (-5)
Taking,
(x – 3) = 0
x = 3
So, the roots of the equation of 2x2 + 4x = 30 are (-5) and 3.
Tip: To find the answer quickly we can put the values of the options directly in the equation and check whether the values satisfy the equation.
19. Find the next letter set in the given series.CV, ET, HQ, ?
A. LM
B. LC
C. MX
D. LK
Solutions
Each term in the series consists of two alphabets and form two consecutive series,
First part :C + 2 = E; E + 3 = H; H + 4 = L;
Second Part :V – 2 = T; T – 3 = Q; Q – 4 = M;
Hence, “LM” is the next term in the given series.
20. Find the odd figure out from among the given figures.
A. B
B. C
C. A
D. D
Solutions
In the above given figures, all the given figures have two small circles except figure D. D have only one small circle in the centre.
Hence, figure D is the odd one out among the given figures.
21. What is the process by which a gas is converted into a solid?
A. Deposition
B. Sublimation
C. Vaporisation
D. Freezing
Solutions
1.Deposition is the process by which a gas is converted into a solid.
2.Sublimation is the process by which a solid is converted to gas directly without changing into liquid in between.
3. Vaporisation is the process of conversion of solid or liquid into a gas (vapour).
4. Freezing is a process of conversion of liquid into solid at freezing point.
22. The Indian Space Research Organisation (ISRO) created the world’s third-largest hypersonic wind tunnel in:
A. Jaisalmer
B. Gokarna
C. Thiruvananthapuram
D. Ahmedabad
Solutions
1.The Indian Space Research Organisation (ISRO) created the world’s third-largest hypersonic wind tunnel in Thiruvananthapuram, Kerala in the year 2017.
2. Two facilities were commissioned in this regard by the Chairman of ISRO- 1-m Shock Tunnel and 1-m Hypersonic Wind Tunnel.
3. These are the third largest in terms of simulation capability and size.
4. These will help in studying the effects of air flowing past a space vehicle.
23. Choose the mirror image for the following figure:
A. D
B. C
C. A
D. B
Solutions
The mirror image of the following figure is,
- Hence, “Figure B” is the correct answer.
24. Who among the following is the Minister of External Affairs?
A. Sushma Swaraj
B. SM Krishna
C. Salman Khurshid
D. Manmohan Singh
Solutions
1.Sushma Swaraj is the Minister of External Affairs.
2. SM Krishna is the former Governor of Maharashtra.
3. Salman Khurshid is the former Cabinet Minister of Law and Justice and Minority Affairs.
4. Manmohan Singh is the former Prime Minister of India.
5. The current Minister of External Affairs is Mr Jaishankar.
25. Two pipes feed a water tank at the rate of 2 liters/minute and and 3 liters/minute. A third pipe draws out water at a rate of 6 liters/minute. The capacity of the tank is 100 liters and it is full of water. How many minutes would it take to make the tank empty if the three pipes are opened simultaneously?
A. 125
B. 75
C. 100
D. 50
Solutions
First pipe feed the water tank in 1 min = 2 liters
Second pipe feed the water tank in 1 min = 3 liters
Third pipe draws out water in 1 min = 6 liters
If all three pipes open simultaneously, then water draws out in 1 min = 6 – 3 – 2 = 1 liter
Capacity of tank = 100 liters
It would take to make the tank empty if the three pipes are opened simultaneously = 100/1 = 100 min
26. Four words have been given below of which three are alike in some way and one is different. Choose the odd on out:
A. ISM Dhanbad
B. (CBI) Central Bureau of Investigation
C. NIT Warangal
D. BHU Varanasi
Solutions
Here, NIT Warangal, BHU Varanasi and ISM Dhanbad are educational institutes. Whereas, (CBI) Central Bureau of Investigation is a Government department.
Hence, “CBI” is odd one among the given options.
27.
Choose the correct picture that fits the blank place.
A. A
B. B
C. C
D. D
Solutions
In the last part the figure has four small circle on the outer side of the figure.
- Hence, answer figure B will replace the question mark.
28. Choose the correct figure that will fit in the blank space in the following series.
A. A
B. D
C. C
D. B
Solutions
In the problem figure there are sets of two parts. First part of the set has two geometric figures. In the second part the geometric figure which is present at the bottom of first part is placed outside and the other figure is placed inside and a third new figure appears at the centre.
Hence, figure B of Answer figures will replace the question mark.
29. Force = ________.
A. mass × acceleration
B. mass × volume
C. mass × pressure
D. mass × velocity
Solutions
1.Force = mass × acceleration
2. The net force of an object is defined as its acceleration multiplied by its mass.
3. Force is measured as N, Newton, mass in Kg, and acceleration in m/s2.
4. This formula is related to Newton’s second law of motion.
30. Consider the given statement and decide which of the given assumptions is/are implicit in the statement.
Statement:
“Beware of the dog,” a signboard states.
Assumption:
I. Dogs protect the home.
2. Dogs are the most loyal animals.
A. Neither I nor II is implicit
B. Only assumption I is implicit
C. Only assumption II implicit
D. Both I and II are implicit
Solutions
The signboard indicates the presence of a dog and the visitors are being cautioned.
The main purpose of raising a dog is to ensure protection.
Hence, assumption I is implicit.
The statement only speaks about dog. Therefore, no kind of comparison is implicit.
Therefore, assumption II is not implicit.
Hence, only assumption I is implicit.
31. The Gulf of Bothnia is situated between two countries. One of them is Finland. Which is the other country?
A. Denmark
B. Russia
C. Sweden
D. Norway
Solutions
1. The Gulf of Bothnia is situated between two countries, which are Finland and Sweden.
2.It covers an area of 45,200 square miles.
3. It forms the north most arm of the Baltic sea.
4. Aland islands lie to the south of it.
32. Kaushik bought a toy for Rs. 180 and sold it for Rs. 202.50 The rate of profit was _______ %
A. 15.25
B. 12.5
C. 16
D. 17.5
Solutions
Cost price of the toys = Rs. 180
Selling price of the toys = Rs. 202.50
Profit = Rs. 202.50 – Rs. 180 = 22.5
Profit percentage = (profit/cost price) × 100
Profit percentage = (22.5/180) × 100 = 12.5%
33. A cylinder has the same height as the radius of its base. A hollow sphere has the same outer radius as that of the base of the cylinder while the inner radius is half of the outer radius. Find the ratio of the volumes of the cylinder to the hollow sphere.
A. 5 : 6
B. 7 : 8
C. 6 : 7
D. 3 : 4
Solutions
Given, height of the cylinder (H) = Base radius (R) of the cylinder
Outer radius of the sphere = Base radius of (R) of the cylinder
Inner radius (r) of the sphere = (outer radius of the sphere)/2
As we know, volume of the cylinder = πR2H
Given, R = H
Volume of the cylinder = π R2 × R = π R3
Volume of the hollow sphere = (4/3) × π (R3 – r3)
Given, r = R/2
Volume of the hollow sphere = (4/3) × π [R3 – (R/2)3] = (4/3) × π × (R3 – R3/8) = (4/3) × π × (7R3/8)
Required ratio of the volumes of the cylinder to the hollow sphere = π R3 : (4/3) × π × (7R3/8)
⇒ 6 : 7
34. Objects move with a constant speed when no _______ is acting on it.
A. pressure
B. inertia
C. force
D. momentum
Solutions
The correct answer is option 3 i.e Force,
CONCEPT:
- Force (F): The interaction which after applying on body changes or try to change the state of motion or state of rest is called force.
Force (F) = Mass (m) × Acceleration (a)
- Speed (v): The rate of change of distance is called speed.
- Acceleration (a): The rate of change of velocity is called acceleration.
EXPLANATION:
When force (F) = 0
Acceleraion (a) = F/m = 0/m = 0
- Since there is no acceleration, so there will be no change in speed. Hence the speed will remain constant.
- Objects move at a constant speed when no force is acting on it.
Additional Information
1.This was first declared by Galileo Galilei.
2. It means that an object will continue to be in motion when no other force is acting upon it while it is moving on a frictionless path.
35. A force of 10N is acting on an object. The object is displaced through 5 m in the direction of force. Then the work done is:
A. -50 J
B. 50 Watt
C. -50 N
D. 50 Nm
Solutions
Work done = Force (F) × displacement (S)
F = 10 N
S = 5 m
W = F × S
= 10 × 5
= 50 Nm or 50 Joules.
36. A tractor can finish its journey in 10 hours at the speed of 36km/hr. If the same distance must be covered in 8 hours, what should be the speed of the tractor?
A. 60 km/hr
B. 50 km/hr
C. 45 km/hr
D. 55 km/hr
Solutions
Distance covered by tractor in 10 hrs with the speed of 36 km/hr = 36 × 10 = 360 km
So, 360 km covered in 8 hours then, speed of the tractor
Speed = Distance/Time
Speed = 360/8 = 45 km/hr
37. Which of the following reaction is precipitation reaction?
A. Calcium carbonate → calcium oxide + Carbon dioxide
B. Sodium sulphate + Barium chloride → Barium sulphate + Sodium chloride
C. Lead + Copper chloride → Lead chloride + Copper
D. Methane + Oxygen → Carbon dioxide + Water
Solutions
1.Sodium sulphate + Barium chloride → Barium sulphate + Sodium chloride
2.It is a precipitation reaction.
3. Since barium sulphate is insoluble in water, it precipitates as a solid while sodium chloride remains in the solution.
4. A precipitation reaction is that which forms an insoluble salt when 2 solution having soluble salts are combined.
38. Padma is the sister of Suresh’s mother. How is Padma related to Suresh?
A. Grandmother
B. Mother
C. Sister
D. Aunt
Solutions
- Hence, “Padma is Aunt of Suresh”.
39. If cosec4θ – cosec2θ = 1.24, then cot4θ + cot2θ = ?
A. 1.24
B. 1.86
C. 2.48
D. 0.62
Solutions
cosec4θ – cosec2θ = 1.24
Formula: 1 + cot2θ = cosec2θ
⇒ (1 + cot2θ )2 – (1 + cot2θ ) = 1.24
⇒ 1 + cot4θ + 2cot2θ – 1 – cot2θ = 1.24
⇒ cot4θ + cot2θ = 1.24
40. How many hydrogen atoms are present in one molecule of ethanol?
A. Six
B. Four
C. Seven
D. Five
Solutions
1.Six hydrogen atoms are present in one molecule of ethanol(C2H6O).
2. Ethanol is an alcohol having 2 carbons.
3. It is used as a fuel, in beverages, in manufacturing perfumes, etc.
41. The mean of the 5 smallest numbers from a group is 18 while the mean of all the 13 members of the group taken together is 20. What is the mean of the 8 largest numbers?
A. 22.50
B. 22.75
C. 21.75
D. 21.25
Solutions
Mean of all the 13 number = 20
Sum of all the 13 number = 13 × 20 = 260
Mean of smallest 5 numbers = 18
Sum of smallest 5 numbers = 18 × 5 = 90
Sum of largest 8 numbers = 260 – 90 = 170
Mean of largest 8 numbers = 170/8 = 21.25
42. 138 ÷ [35 – {53 – (89 – 72 ÷ 9 × 6)}] = ?
A. 2
B. 6
C. 23
D. 3
Solutions
Follow BODMAS rule to solve this question, as per the order given below:
Step-1: Parts of the equation enclosed in ‘Brackets’ must be solved first, and inside the bracket,
Step-2: Any mathematical ‘Of’ or ‘Exponent’ must be solved next,
Step-3: Next, the parts of the equation that contain ‘Division’ and ‘Multiplication’ are calculated,
Step-4: Last but not least, the parts of the equation that contain ‘Addition’ and ‘Subtraction’ should be calculated.
138 ÷ [35 – {53 – (89 – 72 ÷ 9 × 6)}]
138 ÷ [35 – {53 – (89 – 8 × 6)}]
138 ÷ [35 – {53 – (89 – 48)}]
138 ÷ [35 – {53 – 41]
138 ÷ [35 – 12]
138 ÷ 23 = 6
43. The resistivity of a conductor depends on:
A. Material
B. Area of cross section
C. Length
D. All of the given options
Solutions
CONCEPT:
- Resistivity: The measure of the resistance of a specific material to electrical conduction is called resistivity. It is denoted by ρ.
- Resistivity is the property of any material/conductor.
- It also depends on temperature and nature but not on shape and size.
- Its unit is ohm-meter.
EXPLANATION:
- Since the resistivity of any conductor is the property of the material. So it is independent of the shape and the size.
- It depends on the material of the conductor. So option 1 is correct.
- Electrical resistivity (ρ)
- It is defined as the resistance of a unit length with a unit area of cross-section of the material of the conductor.
Confusion Points
- Difference between resistivity and resistance:
| RESISTANCE | RESISTIVITY |
| The property of any conductor that opposes the flow of electric current through it and depends on the shape and size (length and area) of the materials, temperature, and nature of the materials is called resistance. | The property of a conductor that opposes the flow of electric current through them and independent of the shape and size (length and area) of the materials but depends on the nature and temperature of the materials is called resistivity. |
| It is denoted by R. | It is denoted by ρ. |
| The SI unit is the ohm(Ω). | The SI unit is ohm-meter (Ω-m). |
| It is not a constant term for a given material. It can be changed by changing the length or cross-sectional area of that material. | It is a constant term for a given material. It doesn’t change by changing the length and cross-sectional area of the material. |
44. A sum of money when invested for 5 years gives Rs. 5,250 as the amount. If the simple rate of interest was 2% per annum more than what it was, the amount would have been Rs.. 5,600. The original sum invested was:
A. Rs. 4,000
B. Rs. 3,250
C. Rs. 3,750
D. Rs. 3,500
Solutions
Let the sum of money be Rs. P
Let the rate of simple interest be r%
As we know,
Simple Interest = (P × r × t)/100
Amount = Principal + Simple Interest
If sum of money when invested for 5 years gives Rs. 5,250 as the amount
According to the question
P + (P × r × 5)/100 = 5250
100P + 5Pr = 5250 × 100
5Pr = (5250 × 100) – 100P —-(1)
If the simple rate of interest was 2% per annum more, amount would have been Rs. 5600
P + [P × (r + 2) × 5]/100 = 5250
100P + 5Pr + 10P = 5600 × 100
5Pr = (5600 × 100) – 110P —-(2)
From equation (1) and equation (2)
(5250 × 100) – 100P = (5600 × 100) – 110P
110P – 100P = (5600 × 100) – (5250 × 100)
10P = 100 × (5600 – 5250)
10P = 100 × 350
P = 3,500
45. Which process of fusion of sperm and ova results in the formation of single structure called zygote?
A. Fragmentation
B. Fertilisation
C. Sexual reproduction
D. Tissue culture
Solutions
1.Fertilisation results in the formation of a single structure called zygote.
2. Fragmentation is the process where a parent organism divides or breaks into fragments to form a new organism.
3. Sexual reproduction is the process of fusion of a female egg and a male sperm.
4. Tissue culture is the process of growing cells in an artificial medium.
46. -3, -8, -13, -18, ________ the sum of the first 10th term in the sequence is:
A. -250
B. -260
C. -255
D. -245
Solutions
As we know,
Sum of the first n term of AP = n/2 × [2a + (n – 1)d]
a = first term
d = common difference
Given AP is -3, -8, -13, -18,
First term (a) = (-3)
Common difference (d) = (-8) – (-3) = (-8) + 3 = (-5)
Sum of first 10th term (S10) = n/2 [2a + (n – 1)d]
(S10) = 10/2 [2 × (-3) + (10 – 1) × (-5)]
(S10) = 5 [(-6) + 9 × (-5)]
(S10) = 5 × (-51)
(S10) = -255
47. In a hostel, there is stock of 6,190.80 kg of wheat for feeding 105 students for 22 days. After 5 days, 14 students joined the hostel. How many days will the balance wheat feed the students, if all students consume the same quantity per day?
A. 11 days
B. 15 days
C. 13 days
D. 17 days
Solutions
As we know, Total work = Total work, so
M1 × D1 = M2 × D2 + M3 × D3
Given, M1 = 105 students, D1 = 22 days, M2 = 105 students, D2 = 5 days, M3 = (105 + 14 = 119) students and D3 = ?
M1 × D1 = M2 × D2 + M3 × D3
105 × 22 = 105 × 5 + 119 × D3
2310 = 525 + 119 × D3
119 × D3 = 2310 – 525
D3 = 1785/119 = 15 days
48. Who took Oath on 23rd January 2018 as the Governor of Madhya Pradesh?
A. Om Prakash Kohli
B. Kumud Ben Joshi
C. Ram Naresh Yadav
D. Anandiben Patel
Solutions
- Former CM of Gujarat Anandiben Patel took Oath on 23rd January 2018 as the Governor of Madhya Pradesh.
- Om Prakash Kohli served as the Governor of Gujarat.
- Kumud Ben Joshi served as Andhra Pradesh Governor from 1985-1990.
- Ram Naresh Yadav served as the CM of Uttar Pradesh from 1977-1979.
| Article | Subject |
| Article 151 | Audit reports: The reports of the Comptroller and Auditor General of India relating to the accounts of the Union. |
| Article 155 | Appointment of Governor |
| Article 148 | Comptroller and Auditor General of India |
| Article 127 | Appointment of ad hoc Judges |
49. Sound generated by a single frequency is called _______.
A. tone
B. wavelength
C. amplitude
D. pitch
Solutions
1.The sound generated by a single frequency is called tone.
2. The distance between 2 successive troughs or crests of a wave is known as wavelength.
3. Amplitude is defined as the maximum distance or displacement moved by a point on a vibrating body.
4. Pitch is the sensation of a frequency.
50. The Saraswati Samman Award 2016 was bestowed upon:
A. A.A manavalan
B. Padma Sachdev
C. Mahabaleshwar Sail
D. Sugathakumari
Solutions
1.The Saraswati Samman Award 2016 was bestowed upon Mahabaleshwar Sail.
2. He is a prominent Konkani writer and was awarded on 31 August 2017 for his novel Hawthan.
3. Saraswati Samman is awarded annually to individuals for their outstanding literary work in any of the 22 languages given the Schedule VIII of the Indian Constitution.
4. The award was established in the year 1991 and carries a cash prize of Rs. 15 lakh.
51. Nm-2 is the SI unit of:
A. Pressure
B. Work
C. Power
D. Force
Solutions
| SI Unit | Quantity |
| Nm-2 | Pressure |
| Joule | Work |
| Watt | Power |
| Newton | Force |
52. A statement is followed by two arguments. Decide which of the arguments is/are strong with respect to the statement.
Statement:
There is more wastage of water due to water purifiers.
Arguments:
I. Yes, houses should adopt ways to reuse the excess water produced from the filters so that it can be given back to the land.
II. No it enters the sewage system and automatically goes back.
A. Only argument I is strong.
B. Only argument II is strong
C. Neither I nor II is strong
D. Both I and II are strong
Solutions
The statement talks about wastage of water due to water purifiers.
Argument I suggests working on developing methods to deal with the wastage caused due to water purifiers. Therefore, argument I is inline with the given statement.
Hence, argument I is strong.
Argument II denies the wastage mentioned in the statement thus contradicting it.
Therefore, argument II is not strong.
Hence only argument I is strong.
53. ‘Nuakhai’, a social festival belongs to which state of India?
A. Tamil Nadu
B. Assam
C. Odisha
D. Karnataka
Solutions
- ‘Nuakhai’, a social festival belongs Odisha.
| State | Festivals |
| Tamil Nadu | Pongal |
| Assam | Bihu |
| Odisha | Nuakhai |
| Karnataka | Hampi |
54. Find out the least number to be added 1051 make it completely divisible by 33.
A. 31
B. 33
C. 38
D. 36
Solutions
When we divide 1051 by 33, then
1051 ÷ 33 = 33 × 31 + 28
If we add 5 in 28 then it become 33 which is divisible by 33, so answer will be 5.
Since 5 is not given in the options, the next number would be 5 + 33 = 38.
55. The chemical formula of ferrous sulphate crystal is ________.
A. FeSO4.4H2O
B. FeSO4.5H2O
C. FeSO4.6H2O
D. FeSO4.7H2O
Solutions
1.The chemical formula of ferrous sulphate crystal is FeSO4.7H2O.
2. It is a yellow-brown or greenish crystalline solid.
3. It is heptahydrate salt.
4. FeSO4.4H2O is tetrahydrate salt, while FeSO4.5H2O is pentahydrated salt.
56. Consider the given statement(s) and decide which of the given assumption(s) is/are implicit in the statement.
Statement: Organisations that follow certain business ethics have better chances of survival, compared to those whose only goal is to earn profits.
Assumption:
I. A written code of ethics to let the employees know the do’s and dont’s of an organisation is important.
II. Organisations should focus on training employees on code of ethics.
A. Both I and II are implicit.
B. Only assumption I is implicit
C. Only assumption II is implicit
D. Neither I nor II is implicit
Solutions
The statement outlines the benefits gained by organisations upon following business ethics.
Therefore, any action which supports the statement would be an implicit assumption.
Written code of ethics is akin to laying out the rules and regulations that are mandatory to be followed by every employee of the organization.
Thus, it can ensure business ethics are followed.
Therefore, assumption I is implicit.
Educating the employees about the ethical laws of the company will increase awareness and can help effective implementation of the code of ethics.
Therefore, assumption II is implicit.
Hence both I and II are implicit.
57. Who has won the Padma Sri Award 2018 in the field of sports(Swimming)?
A. Sandeep Sejwal
B. Shikha Tandon
C. Sajan Prakash
D. Murlikant Petkar
Solutions
1.Murlikant Petkar won the Padma Sri Award 2018 in the field of sports(Swimming).
2. He is India’s first Paralympic gold medallist.
3. MS Dhoni and Pankaj Advani won Padma Bhushan.
4. Kidambi Srikanth, Somdev Kishore Devvarman, and Saikhom Mirabai Chanu won Padma Shri.
58. The sum of 5/12 and 12/5 is:
A. 17/60
B. 60/17
C. 17/17
D. 169/60
Solutions
The sum of 5/12 and 12/5
LCM of 12, 5 = 60
= (25 + 144)/60 = 169/60
59. Ohm is the SI unit of ________.
A. electric charge
B. electric current
C. potential difference
D. resistance
Solutions
| SI Unit | Quantity |
| coulomb | electric charge |
| ampere | electric current |
| volt | potential difference |
| ohm | resistance |
60. x and y, given correct to 1 decimal place are given as 6.5 and 1.3 respectively. What is the upper bound of the value of x/y?
A. 5
B. 4.77
C. 5.05
D. 4.96
Solutions
Given, x = 6.5 and y = 1.3, then
x/y = 6.5/1.3 = 5
61. Identify the avid mountaineer who, in May 2017, became the first woman in the world to scale Mount Everest twice in a season. Does she also hold the record of fastest double ascent by a woman to the world’s highest peak?
A. Anshu Jamsenpa
B. Malavath Purna
C. Arunima Sinha
D. Premlata Agrawal
Solutions
The correct answer is Anshu Jamsenpa
Key Points
1.Anshu Jamsenpa, in May 2017, became the first woman in the world to scale Mount Everest twice in a season.
2. She did this in just 5 days.
3. She also holds the record for fastest double ascent by a woman to the world’s highest peak.
4. She has climbed Mt Everest 5 times till now.
5. Malavath Purna is the youngest Indian girl to climb the summit.
6. Arunima Sinha is the first female amputee in the world to climb Everest.
7. Premlata Agrawal is the first Indian to climb the 7 highest peaks of the world.
8. Image of Anshu Jamsenpa
62. A porter lifts a luggage of 12 kg from the ground and puts it on his head 1.5m above the ground. Calculate the work done by him on the luggage (g = 10ms-2)
A. 140 J
B. 180 J
C. 150 J
D. 155 J
Solutions
Work done by the porter on the luggage = Force x displacement
For scientific purposes g= 9.8 m/s
= mgh
= 12 kg x (10 m/s2) x 1.5 m
= 180 J
63. Who hosted recently concluded ASIA CUP Men’s Cricket 2018 tournament?
A. UAE
B. Bangladesh
C. Nepal
D. China
Solutions
- UAE hosted the recently concluded 2018 ASIA CUP Men’s Cricket tournament.
- It is a One Day International cricket tournament.
- The final was played between Bangladesh and India, where India emerged as the winner.
- It was held from 15-28 September 2018 in UAE.
64. Areolar tissue fills the spaces ________ the organ, supports the _______ organs and repairs tissues.
A. outside; internal
B. outside; external
C. inside; internal
D. inside; external
Solutions
- Areolar tissue fills the spaces inside the organ, supports the internal organs and repairs tissues.
- These are connective tissues found between muscles and skin, around nerves and blood vessels and in the bone marrow.
- It consists of many types of cells and fibres.
65. 45 men can complete a piece of work in 12 days. In how many days will 36 men be able to complete it?
A. 10
B. 16
C. 18
D. 15
Solutions
As we know, Total work = Total work, so
M1 × D1 = M2 × D2
Given, M1 = 45 men, D1 = 12 days, M2 = 36 days and D2 = ?
M1 × D1 = M2 × D2
45 × 12 = 36 × D2
D2 = (45 × 12)/36 = 15 days
66. Arjun was born on 1st January 2007, Monday. What day of the week lies on 1st January, 2008?
A. Sunday
B. Tuesday
C. Friday
D. Wednesday
Solutions
No. of days = 365
No. of weeks = 365 ÷ 7 = 52 weeks + 1 day.
So, the day on 1st January 2008 will be Tuesday.
67. In which of the following oceans is the Republic of Seychelles located?
A. Pacific Ocean
B,.Indian Ocean
C. Atlantic Ocean
D. Artic Ocean
Solutions
- The Republic of Seychelles is located in the Indian Ocean.
- Its capital is Victoria, which is situated on Mahe Island.
- It is composed of two island groups and is one of the world’s smallest countries.
- Danny Faure is the President of the country.
68. ________ give evidence of evolutionary relationships.
A. Rocks
B. Ocean beds
C. River beds
D. Fossils
Solutions
- Rocks give evidence of evolutionary relationships.
- Many fossils have been found in the rocks of different ages.
- Evidence of evolution can be obtained from different areas such as biogeography, anatomy, fossils, direct observation, etc.
69. Who discovered the theory of nuclear forces?
A. S.N. Bose
B. Hideki Hukawa
C. J.C. Bose
D. J.J. Thomson
Solutions
- Hideki Hukawa discovered the theory of nuclear forces.
- he forces acting between 2 or more nucleons are known as nuclear forces.
- S.N. Bose is known for developing Bose-Einstein Condensate.
- J.C. Bose invented crescograph.
- J.J. Thomson is known to have discovered electron.
70. Which alpha-numeric set will follow in the given series?12E, 15B, 18Y, 21V,?
A. 20V
B. 25G
C. 24S
D. 28T
Solutions
The pattern follow here is,
Logic followed for the number is:
12 + 3 = 15;
15 + 3 = 18;
18 + 3 = 21;
21 + 3 = 24;
Logic followed for the alphabet is,
E – 3 = B;
B – 3 = Y;
Y – 3 = V;
V – 3 = S;
Hence, “24S” is the next term of the given series.
71. Unsaturated hydrocarbons add hydrogen in the presence of catalysts such as:
A. Nickel and Cadmium
B. Nickel and Hydrogen
C. Nickel and Palladium
D. Palladium and Radium
Solutions
The role of a catalyst–
- The role of a catalyst in a reaction is to lower the activation energy of the reactants.
- Lowering the activation energy increases the rate of the reaction.
- The reaction now proceeds via a low energy path.
- Catalysts and promoters are also used to speed up the process and increase yield.
- For the process of hydrogenation, nickel is used as a catalyst to increase the speed of reaction.
- Unsaturated hydrocarbons add hydrogen in the presence of catalysts such as Nickel and Palladium.
- Through this process, the unsaturated hydrocarbons get converted into saturated ones.
- This process is known as an addition reaction.
Hence, the catalyst used is Nickel and Palladium for adding hydrogen to unsaturated hydrocarbons.
72. Find the mirror image of the following figure if the mirror is placed at line MN.
A. A
B. C
C. D
D. B
Solutions
The mirror image of the give figure is as follow,
- Hence, “Figure A” is the correct answer.
73. Two pipes X and Y can fill up a tank in 32 minutes and 16 minutes respectively. If both the pipes are opened simultaneously, after how much time should Y be closed, so that the tank is full in 20 minutes?
A. 6 minutes
B. 10 minutes
C. 4 minutes
D. 8 minutes
Solutions
ALTERNATE METHOD
As, X is working for 20 minutes so x will fill 1 × 20 = 20 units out of 32 units
Remaining = 32 – 20 = 12 units
Y can fill 2 units in 1 minute as his efficiency is 2
⇒ Y can fill 12 units in 12/2 = 6 minutes
∴ After 6 minutes Y should be closed
74. Which of the following inert gases is placed in period 5?
A. Ne
B. Ru
C. Xe
D. Ar
Solutions
- Xe or Xenon, an inert gas, is placed in period 5 of the periodic table.
- Ne of Neon is in period 2.
- Ru or Ruthenium is in period 5, but it is not an inert gas.
- Ar or Aron is placed in period 3.
75. As of 1st March 2018, who among the following is India’s Permanent Representative to the United Nations?
A. Rajiv Kumar Chander
B. Hardeep Singh
C. Nirupam Sen
D. Nirupama Menon Rao
Solutions
- As of 1st March 2018, Rajiv Kumar Chander is India’s Permanent Representative to the United Nations.
- Prior to this appointment, he was the Consul General, Consulate General of India, Vancouver.
- Hardeep Singh is the Minister of State of the Ministry of Housing and Urban Affairs
- Nirupam Sen was the former West Bengal Commerce and Industry Minister.
- Nirupama Menon Rao is the former Foreign Secretary of India.
76. Who among the following won the 53rd Jnanpith Award for the year 2017?
A. Amar Kant
B. Kedarnath Singh
C. Pratibha Ray
D. Krishna Sobti
Solutions
- Krishna Sobti won the 53rd Jnanpith Award for the year 2017.
- She was awarded for her contribution to the Indian literature.
- She is the 8th women to win this award.
- The award carries a plaque, cash prize of Rs. 11 lakh and a bronze statue of Goddess Saraswati.
77. Which of the following sports is S.V. Sunil related to?
A. Table tennis
B. Hockey
C. Badminton
D. Cricket
Solutions
- S.V. Sunil is related to Hockey.
- He won a silver medal at the 2014 Commonwealth Games and also participated in the 2012 London Olympics.
| Sports | Famous Players |
| Table tennis | Harmeet Desai |
| Hockey | S.V. Sunil |
| Badminton | Srikanth Kidambi |
| Cricket | MS Dhoni |
78. The following pie chart shown the expenditure of company XYZ in Q3 2015 on various heads.
If company XYZ has spent a total of Rs. 100 lakh crores on the various heads then how much did it spend on R & D (in lakh crores)?
A. 20
B. 10
C. 30
D. 40
Solutions
Total spent by the company on the various heads = 100 lakh crores
Total percentage spent on R and D = 40%
Total spent on R & D in rupees = 100 × 40/100 = 40 lakh crores.
79. The HCF of 66, 198 and 154 is _______.
A. 44
B. 66
C. 22
D. 33
Solutions
Factorisation Method:
66 = 2 × 3 × 11
198 = 2 × 3 × 11 × 3
154 = 2 × 7 × 11
H.C.F = 2 × 11 = 22
- ∴ HCF = 22
80. The plants in ________ group are commonly called algae.
A. Gymnosperm
B. Bryophyta
C. Pteridophyte
D. Thallophyta
Solutions
- The plants in the Thallophyta group are commonly called algae.
- These are usually found in wet or moist places.
- They do not have vascular tissue and are autotrophic in nature.
- Bryophytes are land plants such as mosses and hornworts.
- Pteridophytes are those plants which do not have seeds or flowers.
- Gymnosperms are those plants which are flowerless but produces seeds.
81. Read the given statement(s) and conclusions carefully and select which of the conclusions logically follow(s) from the statement(s).
Statements:
I. All pigs are white.
II. Some white are peacock.
Conclusions:
1. Some peacock are pigs.
2. Some white are pigs
A. Both 1 and 2 follows.
B. Neither 1 nor 2 follows
C. Conclusion 2 alone follows.
D. Conclusion 1 alone follows
Solutions
Statement I: All pigs are white.
Statement II: Some white are peacock.
Conclusions:
I. Some peacock are pigs. → False (as it’s a case of possibility but not specific)
II. Some white are pigs → True
Hence, “Only Conclusion 2” follows.
82. Name the service launched by the Central Government which will be available across the Common Service Centre (CSC) network and connect citizens to legal service providers with the help of technology-enabled platforms.
A. ‘Madadgar’
B. ‘Tele-Law’
C. ‘Retro-Fitment’
D. ‘Digi yatra’
Solutions
- ‘Tele-Law’ was launched by the Central Government in 2017 which will be available across the Common Service Centre (CSC) network and connect citizens to legal service providers with the help of technology-enabled platforms.
- This will make legal aid accessible to citizens and marginalized communities living in rural areas.
- It was first tested on a pilot basis in Bihar and Uttar Pradesh in 500 Common Service Centres.
83. What is the chemical name of Chinese salt that we use in preparing Chinese cuisine?
A. Calcium hypochlorite
B. Calcium carbonate
C. Sodium benzoate
D. Monosodium glutamate
Solutions
- Monosodium glutamate is the chemical name of Chinese salt that we use in preparing Chinese cuisine.
- It is also known as Ajinomoto.
- It helps in enhancing the flavour of the cooked food.
- It is derived from glutamic acid or amino acid glutamate.
84. Samu spent 1/4 of his money on books and 1/8 on food. If he is left with Rs. 40, how much did he spend on food?
A. 12
B. 8
C. 6
D. 10
Solutions
Let Smau have x money
He spent on book = x × (1/4) = x/4
He spent on food = x × (1/8) = x/8
Remaining money = x – x/4 – x/8 = (8x – 2x – x)/8 = 5x/8
According to the question
5x/8 = 40
x = 40 × (8/5) = 64
Total money = Rs. 64
Money spent on the food = Rs. 64 × (x/8) = Rs. 8
85. Choose the correct option to complete the series.
A. 
B. 
C. 
D. 
Solutions
In the given series:
The two figures (semi circles) given in the first part are inverted vertically (mirror image) to form the second part (a circle). Similarly, the figures in third part are inverted and a square is formed (at the centre) in the fourth part.
- Hence, the figure given above is the correct answer.
86. Read the following information carefully and answer the question that is given below.
Amrith is older than Manish. Vishnu is older than Manish but younger than Amrith. Dhivakar is younger than Rakesh and Manish. Manish is older than Rakesh.
Who is the eldest?
A. Manish
B. Rakesh
C. Vishnu
D. Amrith
Solutions
1) Amrith is older than Manish.
2) Vishnu is older than Manish but younger than Amrith.
Amrith > Vishnu > Manish
3) Manish is older than Rakesh.
4) Dhivakar is younger than Rakesh and Manish.
Amrith > Vishnu > Manish > Rakesh >Dhivakar
Hence, Amrith is the oldest.
87. A car accelerates uniformly from 18 kmh-1 to 36 kmh-1 in 5 sec. Calculate the acceleration of Car.
A. 1 ms-2
B. 4 ms-2
C. 4 ms2
D. 1 ms2
Solutions
CONCEPT:
- Equation of motion: The mathematical equations used to find the final velocity, displacements, time, etc of a moving object without considering force acting on it are called equations of motion.
- These equations are only valid when the acceleration of the body is constant and they move on a straight line.
There are three equations of motion:
V = u + at
V2 = u2 + 2 a S
S=ut+12at2
Where, V = final velocity, u = initial velocity, s = distance traveled by the body under motion, a = acceleration of body under motion, and t = time taken by the body under motion.
CALCULATION:
It is given that,
⇒ Initial Velocity (u) = 18 km/hr
⇒ Final Velocity (v) = 36 km/hr
⇒ Time (t) = 5 Sec
Use V = u + at
⇒ Acceleration (a) = Change in Velocity (V-u)/Time (t)
⇒ Change in Velocity = (v – u) = 36 – 18 = 18 km/h = 18 × 5/18 = 5 m/s
⇒ Time (t) = 5 Seconds
⇒ Acceleration (a) = 5/5= 1 ms-2
IMPORTENT POINT
- When we need to convert km/h into m/s then multiply the speed with 5/18.
- When we need to convert m/s into km/h then multiply the speed with 18/5.
88. In Mendeleev’s periodic table, ________ appeared before Nickel.
A. Co
B. Rb
C. Mo
D. Sr
Solutions
1.In Mendeleev’s periodic table, Co appeared before Nickel.
2. The elements were arranged in increasing order of their atomic masses in the periodic table.
3. However, Cobalt which has an atomic mass of 58.93 AMU appeared before Nickel with atomic mass 58.
89. Choose the best suitable Venn diagram for the following words
Capsi cum, Mat, Rat.
A. 
B. 
C. 
D. 
Solutions
There is no relation between Capsicum (a vegetable), Mat (Furnishing) and Rat (animal).
Hence, the above figure is the best suitable Venn diagram for the given words.
90. Find the missing word.
Leap (_______) Jump
A. Walk
B. Descend
C. Bounce
D. Run
Solutions
- Leap Bounce Jump
- All three words are synonyms to each other.
- Leap means a forceful jump.
- Bounce means jumping with a jerk.
91. A body travelling with a speed of more than the velocity of sound in air is said to be ________.
A. Ultrasonic
B. Infrasonic
C. Supersonic
D. Hypersonic
Solutions
- A body travelling by a speed of more than the velocity of sound in air is said to be Supersonic.
- Ultrasonic are those vibrations which have frequencies greater than the upper limit of a human’s audible range, that is, above 20kHz.
- Infrasonic sounds are those which have frequencies lower than the lower limit of a human’s audible range, that is, below 20Hz.
- Hypersonic speed is more than 5 times the sound’s speed or frequencies above 1000 million Hz.
92. Which two words were added to the Preamble of the Indian Constitution by the 42nd Amendment, in 1976?
A. Socialist, Secular
B. Secular, Fraternity
C. Democratic, Republic
D. Justice, Liberty
Solutions
- Socialist and Secular were the two words added to the Preamble of the Indian Constitution by the 42nd Amendment, in 1976.
- The earlier description of India was the Sovereign Democratic Republic.
- It was then changed to Sovereign, Socialist, Secular Democratic Republic.
- ‘Unity of nation’ was changed to ‘Unity and integrity of the nation’.
- The Supreme court is the guardian of the constitution.
93. Babur made his first raid into India in ________ A.D.
A. 1519
B. 1521
C. 1535
D. 1544
Solutions
The correct answer is 1519 AD.
Key Points
- Babur made his first raid into India in the year 1519 A.D.
- He attacked with 2000 horsemen and captured Bajaur.
- He later captured Bhira in Punjab.
- He was the first Mughal Emperor and the founder of the Mughal dynasty.
Additional Information
- Babur, an Afghan ruler, established the Mughal dynasty in India in 1526 AD.
- He was the first emperor of the Mughal Empire.
- Babur conquered the first battle of Panipat by defeating Ibrahim Lodi in 1526 AD.
- Ibrahim Lodi was the last ruler of the Lodi dynasty of the Delhi Sultanate.
- Babur defeated Rana Sanga of Mewar in the Battle of Khanwa in the year 1527 AD.
- Humayun was his son and Akbar was his grandson.
- On December 26, 1530 AD, Mughal emperor Babur died in Agra,
- Initially, he was buried in Agra against his wishes.
- Later on, he was buried in Bagh-e Babur Garden in Kabul, Afghanistan by Sher Shah Suri.
94. Each question given below consists of a statement, followed by two arguments numbered I and II. You have to decide which of the arguments is a ‘strong’ argument.
Statement: Is morning dose of coffee good for health?
Arguments:
I. Yes, coffee contains high antioxidants and many minerals which supply essential nutrients to the body.
II. No, consuming too much coffee can lead to panic anxiety attacks and also reduces the quality of sleep.
A. Only Argument I is strong
B. Both I and II are strong.
C. Neither I nor II is strong
D. Only argument II is strong
Solutions
The given statement only talks about morning dose of coffee.
Argument II explains the effects of excess consumption of coffee and thus irrelevant to the statement.
Therefore, argument II is not strong.
Argument I highlights the nutritional benefits of coffee and thus supports the idea of morning intake of coffee.
Therefore, argument I is strong.
Hence, only argument I is strong.
95. A fraction when taken away from 1/5 gives 1/12. What is the fraction?
A. 7/60
B. 11/30
C. 5/12
D. 1/7
Solutions
Let the fraction be x.
According to the question
1/5 – x = 1/12
x = 1/5 – 1/12 = 7/60
96. The following chart shows the results of three athletic academies in the district level selections for three years.
| Academy | 2012 | 2013 | 2014 |
| A | 2 | 3 | 4 |
| B | 1 | 5 | 2 |
| C | 3 | 7 | 9 |
How many selections were done in the year 2014 for academy ‘c’?
A. 19
B. 9
C. 7
D. 3
Solutions
Calculations:
| Academy | 2012 | 2013 | 2014 |
| A | 2 | 3 | 4 |
| B | 1 | 5 | 2 |
| C | 3 | 7 | 9 |
As we can clearly see, In the year 2014 selection done by Academy C = 9
∴ The correct answer is 9.
97. If East becomes North-East then What will West become?
A. South-West
B. South-East
C. North-West
D. North-East
Solutions
The new directions are indicated in boxes. As per the diagram, West will become South West.
Hence, South West is the correct answer.
98. Choose the option that is NOT true about vascular system.
A. Blood flows at low pressure, with jerk and faster in them.
B. It forms about 7-8% of the body weight.
C. Blood is commonly called river of life.
D. Life span of human RBCs is 115-120 days.
Solutions
- Blood flows at high pressure, with a jerk and faster in the vascular system.
- It forms about 7-8% of the body weight.
- Blood is commonly called river of life since it transports oxygen and nutrients, carries away wastes.
- The life span of human RBCs is 115-120 days.
99. The sum of the interior angles of a regular heptagon (seven-side polygon) is:
A. 1080°
B. 720°
C. 540°
D. 900°
Solutions
As we know,
Sum of the interior angles of a regular polygon of side n = (n – 2) × 180
Sum of the interior angles of a regular heptagon (seven-side polygon) = 5 × 180 = 900°
100. Which of the answer figures is formed from the shapes given the problem figure?
A. D
B. C
C. B
D. A
Solutions
- Hence, the above given figure is the answer figure.
