Mental Ability Examination MCQs with solutions

1. Which two numbers are to be interchanged in order to make the following equation correct?
The equation is 15 / 5 + 7 - 2 * 3 = 2

A

7 and 5

B

3 and 7

C

2 and 5

D

3 and 5

Simplification Mental Ability
Correct Answer: D
Explanation

15 / 3 + 7 - 2 * 5 = 2

Correct Answered :

Wrong Answered :

2. If R denotes multiplication, S denotes addition, A denotes subtraction and Q denotes division, then what will be the value of the expression.
135 Q 15 R 3 A 18 S 2?

A

11

B

9

C

-13

D

6

Simplification Mental Ability VERIFIED
Correct Answer: A
Explanation

135 Q 15 R 3 A 18 S 2
135 /15 * 3 -18 +2
9 * 3 - 18 +2
27 - 18 + 2
9 + 2
11

Correct Answered :

Wrong Answered :

3. If Ahmad cycles at a speed of 20 kmph instead of 15 kmph, he would be able to cover a distance of 30 km more. What is the actual distance covered by him?

A

70 kms

B

110 kms

C

90 kms

D

50 kms

Time and Distance Mental Ability
Correct Answer: C
Explanation

According to given scenario 15 * X + 30 = 20 * X
=> X = 30 / 5 = 6
Since Actual speed is 15 kmph
therefore actual distance = 15 * 6 = 90 kms

Correct Answered :

Wrong Answered :

4. What will be the next term of the series
13 , 17 , 27 , 49 , 89 , _____

A

153

B

129

C

142

D

169

Series Mental Ability
Correct Answer: A
Explanation

153

Correct Answered :

Wrong Answered :

5. Which set of symbols from the given alternatives when fitted in order will make the question correct
The equation is 3 ? 8 ? 2 ? 0 ? 7 = 5

A

+ , x , - , /

B

x , - , + , /

C

+ , / , - , x

D

x , / , + , -

Simplification Mental Ability
Correct Answer: D
Explanation

3 x 8 / 2 + 0 - 7
3 x 4 - 7
12 - 7
5

Correct Answered :

Wrong Answered :

6. The speed of a car increases by 3 kmph after every hour. If the distance travelled in the first one hour was 40 km, what was the total distance travelled in 8 hours?

A

510 km

B

404 km

C

368 km

D

471 km

Time and Distance Mental Ability
Correct Answer: B
Explanation

Initial speed is 40 kmph
Speed for next 7 hours will be 43 , 46 , 49 , 52 , 55 , 58 , 61
Therefore total distance covered in 8 hours = 40 + 43 + 46 + 49 + 52 + 55 + 58 + 61 = 404 km

Correct Answered :

Wrong Answered :

7. A person covers first half of the distance at 1500 mph and second half at 900 mph. If the total time taken in covering the distance is 2 hours then the total distance covered by him is [Here mph means meters per hour]

A

2.25 km

B

2 km

C

1.75 km

D

1.5 km

Time and Distance Mental Ability
Correct Answer: A
Explanation

2.25 km

Correct Answered :

Wrong Answered :

8. What is the missing number of the series 7, X, 21, 31, 43?

A

11

B

12

C

13

D

14

Aptitude Mental Ability
Correct Answer: C
Explanation

The difference between 43&31 is 12, 31&21 is 10,so 21&x is some 8 so difference between 7&x is 6 hence the number must be 13

Correct Answered :

Wrong Answered :

9. In a test, a candidate attempted only 10 questions and secured 50% marks in each of the questions. If he obtained a total of 25% in the test and all questions carried equal marks, how many questions were there in the test?

A

8

B

10

C

15

D

20

Aptitude Mental Ability
Correct Answer: D
Explanation

Let each question carry x marks.
According to question 10X(50/100)=25
X=5
Number of question in the test = 100/5 = 20

Correct Answered :

Wrong Answered :

10. Each of A,B,C and D has Rs. 100. A pays Rs 20 to B who pays Rs. 10 to C, who gets Rs. 30 from D. In this context, which of the following statement is correct?

A

C is richest

B

D is richest

C

C does not has more than what A and D have in aggregate

D

D is richer than B

Aptitude Mental Ability
Correct Answer: C
Explanation

A pays Rs 20 to B; A: 100 - 20 = 80
B: 100 + 20 - 10 = 110
C: 100 + 10 + 30 = 140
D: 100 - 30 = 70

Correct Answered :

Wrong Answered :

11. Ram and Afzal start from the same point in opposite directions.After each 1 km Ram always turns left and Afzal turns right. Which of the following statements is correct?

A

After both have travelled 2 km, the distance between them is 4 km.

B

They meet after each has travelled 3km.

C

They meet for the first time after each has travelled 4 km.

D

They go on without ever meeting again.

Aptitude Mental Ability
Correct Answer: B
Explanation

#

Correct Answered :

Wrong Answered :

12. Two equal glasses of the same type are respectively 1/3 and1/4 full of milk. The glasses are then filled to the brim by adding water and the contents are then mixed in a pot. What is the ration of the content of water and the milk in the pot?

A

3:1

B

7:3

C

11:7

D

17:7

Aptitude Mental Ability
Correct Answer: D
Explanation

According to question, 1st glass: 1/3rd milk,remaining water 2nd glass: 1/4th milk,remaining water So,in first glass, (Milk/Water ratio)1=((1/3)/(1-1/3))=((1/3)/(2/3))=1/2 So,in second glass, (Milk/Water ratio)2=((1/4)/(1-1/4))=((1/4)/(3/4))=1/3 Now these 2 glasses are mixed in a pot (Milk/Water ratio)Pot=? So,Let Capacity=L.C.M.(2,3) be 6 liters Then,in first glass Milk=2 liters Water=4 liters Then,in second glass Milk=1.5 liters Water=4.5 liters Now these two glasses are mixed in a pot all quantities remaining constant Total milk in pot=2 liters+ 1.5 liters= 3.5 liters Total water in pot=4 liters+ 4.5 liters=8.5 liters (Milk/Water)pot=3.5/8.5 or 7/17

Correct Answered :

Wrong Answered :

13. A rectangular field has to be fenced on three sides leaving one of the sides of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required?

A

385 hectares

B

315 hectares

C

225 hectares

D

175 hectares

Aptitude Mental Ability
Correct Answer: D
Explanation

#

Correct Answered :

Wrong Answered :

14. Two stations P and Q are 110km apart on a straight track. One train starts from P at 7 am and travels towards Q at 20 kmph. Another train starts from Q at 8 a.m. and travels towards at a speed of 25kmph. At what time will they meet?

A

10 am

B

10.30 am

C

11 am

D

11.30 am

Aptitude Mental Ability
Correct Answer: A
Explanation

Assume both trains meet after x hours after 7 am Distance covered by train starting from P in x hours = 20x km Distance covered by train starting from Q in (x-1) hours = 25(x-1) Total distance = 110 => 20x + 25(x-1) = 110 => 45x = 135 => x= 3 Means, they meet after 3 hours after 7 am, ie, they meet at 10 am

Correct Answered :

Wrong Answered :

15. Rahul went to a shop and bought things worth Rs.25 out of which 30 paise went on sales tax on taxable purchase. If tax rate was 6% then what was the total amount that Rahul paid for the taxable items?

A

Rs. 5

B

Rs. 5.3

C

Rs. 19.7

D

Rs. 20

Aptitude Mental Ability
Correct Answer: C
Explanation

Let the amount taxable purchases be Rs. x. Then, 6% of x = 30 100 x = 30 x 100 = 5. 100 6 Cost of tax free items = Rs. [25 - (5 + 0.30)] = Rs. 19.70

Correct Answered :

Wrong Answered :

16. A fruit seller had some oranges. He sells 40% oranges and still has 420 oranges. How many oranges he had originally?

A

550

B

700

C

1000

D

1050

Aptitude Mental Ability
Correct Answer: B
Explanation

He sells 40% of oranges and still there are 420 oranges remaining. => 60% of oranges = 420 => Total oranges × 60 100 = 420 => Total oranges = 420 × 100 60 = 700

Correct Answered :

Wrong Answered :

17. An accurate clock shows 8 o`clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 2 o`clock in the afternoon?

A

60

B

90

C

180

D

360

Aptitude Mental Ability
Correct Answer: C
Explanation

Angle traced by the hour hand in 6 hours=(360/12)*6 = 180

Correct Answered :

Wrong Answered :

18. The angle of elevation of a 5m long ladder leaning against a wall is 45 degrees and the foot of the ladder is 3m away from the wall. The height of the wall up to the point where the ladder is resting against it is:

A

2m

B

3m

C

4m

D

cannot be determined on the basis of the given information

Aptitude Mental Ability
Correct Answer: C
Explanation

#

Correct Answered :

Wrong Answered :

19. P is able to do a piece of work in 15 days and Q can do the same work in 20 days. If they can work together for 4 days, what is the fraction of work left?

A

8/15

B

7/15

C

11/15

D

2/11

Aptitude Mental Ability
Correct Answer: A
Explanation

Amount of work P can do in 1 day = 1/15 Amount of work Q can do in 1 day = 1/20 Amount of work P and Q can do in 1 day = 1/15 + 1/20 = 7/60 Amount of work P and Q can together do in 4 days = 4 × (7/60) = 7/15 Fraction of work left = 1 – 7/15= 8/15

Correct Answered :

Wrong Answered :

20. The sum of the present ages of a father and his son is 60 years. Six years ago father`s age was five times the age of the son After six years son`s age will be?

A

14 years

B

20 years

C

46 years

D

52 years

Aptitude Mental Ability
Correct Answer: B
Explanation

Let the present ages of son and father be x and (60 –x) years respectively. Then, (60 – x) – 6 = 5(x – 6) 54 – x = 5x – 30 6x = 84 x = 14. Son`s age after 6 years = (x+ 6) = 20 years..

Correct Answered :

Wrong Answered :

21. Radhika went 50 meters south from her house, then turned left and went 20 meters, then turned north and went 30 meters. In which direction is his house from this place?

A

North

B

South-west

C

East

D

North- West

Directions Mental Ability
Correct Answer: D
Explanation

North- West

Correct Answered :

Wrong Answered :

22. A, is brother of B. C is mother of A. B is granddaughter of D. and F is the son of A. what is relation of F to D?

A

grandson

B

Great grandson

C

Nephew

D

Uncle

blo Mental Ability
Correct Answer: B
Explanation

Great grandson

Correct Answered :

Wrong Answered :

23. One evening Raja started walking towards the sun. Walking a little distance and turned to his right and then turned to his right. After walking a little distance, he turned again to his right. In which direction is his mouth?

A

South

B

East

C

West

D

North

Directions Mental Ability
Correct Answer: A
Explanation

South

Correct Answered :

Wrong Answered :

24. If L=+, M= - , N = ×, P=÷ then 5 N 5 P 5 L 5 M 5 =?

A

5

B

zero

C

10

D

15

Simplification Mental Ability
Correct Answer: A
Explanation

5

Correct Answered :

Wrong Answered :

25. In a code language, FRIEND is written as GQJDOC. How will PEACE be written in that language?

A

QFBBF

B

ODBBF

C

QDBBF

D

QDBDF

Coding Decoding Mental Ability
Correct Answer: C
Explanation

QDBBF

Correct Answered :

Wrong Answered :

26. Which two signs should be interchanged to make the following equation correct? 20 ÷ 20 + 20 – 25 × 25=419

A

+ and ÷

B

÷ and ×

C

× and –

D

+ and –

Simplification Mental Ability
Correct Answer: B
Explanation

÷ and ×

Correct Answered :

Wrong Answered :

27. ACCIDENT is related to TNEDICCA in the same way as PASSENGER is related to______.

A

REGNSESAP

B

RGENESSAP

C

REGNESSAP

D

REGMESSAP

Coding Decoding Mental Ability
Correct Answer: C
Explanation

REGNESSAP

Correct Answered :

Wrong Answered :

28. Select the option that will fill in the blank and complete the given series. 0 , 7, 26, 63,124, 215, 342, 511, 728,___

A

999

B

990

C

1001

D

1000

Series Mental Ability
Correct Answer: A
Explanation

999

Correct Answered :

Wrong Answered :

CONTACT US

  • J & K

  • admin@prepmart.in

    • QUICK LINKS

    LIKE AND SHARE YOUR EXPERIENCE

    Like Us on Facebook Join Us on Telegram
    VISITORS COUNT 1 0 7 6 4 8 3
    PrepMart 2022. All Rights Reserved | Terms & Conditions | Privacy Policy | Refund & Cancellation Policy
    Developed By : Azhar Rashid Teli