Operational Aptitude Knowledge Interview Preparation Guide
Download PDF

Aptitude and Knowledge based interview questions and answers.

108 Aptitude Knowledge Questions and Answers:

1 :: How many times in a day, are the hands of a clock in straight line but opposite in direction?

A. 20
B. 22
C. 24
D. 48

B. 22

2 :: Q is as much younger than R as he is older than T. If the sum of the ages of R and T is 50 years, what is definitely the difference between R and Q's age?

A. 1 year
B. 2 years
C. 25 years
D. Data inadequate

D. Data inadequate

3 :: David started a software business by investing Rs. 50,000. After six months, Julia joined her with a capital of Rs. 80,000. After 3 years, they earned a profit of Rs. 24,500. What was David's share in the profit?

A. Rs. 9,423
B. Rs. 10,250
C. Rs. 12,500
D. Rs. 10,500

D. Rs. 10,500

4 :: A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?

A. 10/21
B. 11/21
C. 2/7
D. 5/7

A. 10/21

5 :: A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?

A. 40 minutes
B. 1 hour
C. 1 hr 15 min
D. 1 hr 30 min

C. 1 hr 15 min

6 :: 8 litres are drawn from a cask full of wine and is then filled with water. This operation is performed three more times. The ratio of the quantity of wine now left in cask to that of water is 16 : 65. How much wine did the cask hold originally?

A. 18 litres
B. 24 litres
C. 32 litres
D. 42 litres

B. 24 litres

7 :: A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the jogger?

A. 3.6 sec
B. 18 sec
C. 36 sec
D. 72 sec

C. 36 sec

8 :: Two goods train each 500 m long, are running in opposite directions on parallel tracks. Their speeds are 45 km/hr and 30 km/hr respectively. Find the time taken by the slower train to pass the driver of the faster one.

A. 12 sec
B. 24 sec
C. 48 sec
D. 60 sec

B. 24 sec

9 :: Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is:

A. 60 gallons
B. 100 gallons
C. 120 gallons
D. 180 gallons

C. 120 gallons

10 :: A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?

A. 65 sec
B. 89 sec
C. 100 sec
D. 150 sec

B. 89 sec

11 :: A wheel that has 6 cogs is meshed with a larger wheel of 14 cogs. When the smaller wheel has made 21 revolutions, then the number of revolutions mad by the larger wheel is:

A. 4
B. 9
C. 12
D. 49

B. 9

12 :: 10 women can complete a work in 7 days and 10 children take 14 days to complete the work. How many days will 5 women and 10 children take to complete the work?

A. 3
B. 5
C. 7
D. Cannot be determined

C. 7

13 :: Three partners shared the profit in a business in the ratio 5 : 7 : 8. They had partnered for 14 months, 8 months and 7 months respectively. What was the ratio of their investments?

A. 5 : 7 : 8
B. 20 : 49 : 64
C. 38 : 28 : 21
D. None of these

B. 20 : 49 : 64

14 :: A starts business with Rs. 3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided in the ratio 2 : 3. What is B's contribution in the capital?

A. Rs. 7500
B. Rs. 8000
C. Rs. 8500
D. Rs. 9000

D. Rs. 9000

15 :: The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team?

A.23 years
B.24 years
C.25 years
D.None of these

A.23 years

16 :: The present ages of three persons in proportions 4 : 7 : 9. Eight years ago, the sum of their ages was 56. Find their present ages (in years).

A. 8, 20, 28
B. 16, 28, 36
C. 20, 35, 45
D. None of these

B. 16, 28, 36

17 :: The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is:

A. 1677
B. 1683
C. 2523
D. 3363

B. 1683

18 :: 617 + 6.017 + 0.617 + 6.0017 = ?

A.6.2963
B.62.965
C.629.6357
D.None of these

C.629.6357

19 :: The true discount on a bill due 9 months hence at 16% per annum is Rs. 189. The amount of the bill is:

A. Rs. 1386
B. Rs. 1764
C. Rs. 1575
D. Rs. 2268

B. Rs. 1764

20 :: Find the odd man out.
41, 43, 47, 53, 61, 71, 73, 81

A. 61
B. 71
C. 73
D. 81

D. 81

21 :: From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?

A. 564
B. 645
C. 735
D. 756

D. 756

22 :: 66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be:

A. 84
B. 90
C. 168
D. 336

A. 84

23 :: The cost price of a Rs. 100 stock at 4 discount, when brokerage is 1:4% is:

A. Rs. 95.75
B. Rs. 96
C. Rs. 96.25
D. Rs. 104.25

C. Rs. 96.25

24 :: Direction:
Each question given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.

What is the principal sum?
I. The sum amounts to Rs. 690 in 3 years at S.I.
II. The sum amounts to Rs. 750 in 5 years at S.I.
III. The rate of interest is 5% p.a.

A.I and III only
B.II and III only
C.I and II only
D.I and III only, or II and III only
E.Any two of the three

E.Any two of the three

25 :: Direction:
Each of questions given below consists of a question followed by three statements. You have to study the question and the statements and decide which of the statement(s) is/are necessary to answer the question.

What is the speed of the boat in still water?
I. The speed downstream is 12 kmph.
II. The speed upstream is 4 kmph.
III. In a to and fro journey between two points, the average speed of the boat was 6 kmph.

A.I and II only
B.All I, II and III
C.III, and either I or II
D.Any two of the three
E.None of these

D.Any two of the three

108 Aptitude Knowledge Interview Questions and Answers

Operational Aptitude Knowledge Interview Preparation Guide Download PDF

108 Aptitude Knowledge Questions and Answers:

Table of Contents:

Operational Aptitude Knowledge Interview Preparation Guide
Download PDF