Cognizant Aptitude Screening 3

Question 1

The average of 5 consecutive even numbers is 26. What is the largest number?

Accepted Answer

30

Answer

28

Answer

32

Answer

34

Question 2

P is 25% more efficient than Q. If Q alone can complete a job in 20 days, how many days does P alone take?

Accepted Answer

16 days

Answer

15 days

Answer

18 days

Answer

25 days

Question 3

Two numbers are in the ratio 3:5. If each is increased by 10, the ratio becomes 5:7. What are the numbers?

Accepted Answer

15 and 25

Answer

10 and 20

Answer

12 and 20

Answer

20 and 30

Question 4

Find the probability of drawing a red king from a standard deck of 52 cards.

Accepted Answer

1/26

Answer

1/13

Answer

2/13

Answer

1/52

Question 5

If the compound interest on ₹8000 at 10% per annum for 2 years is ₹X, find X.

Accepted Answer

₹1680

Answer

₹1600

Answer

₹1760

Answer

₹1800

Question 6

A boat travels 30 km upstream in 6 hours and 30 km downstream in 3 hours. What is the speed of the current?

Accepted Answer

2.5 km/h

Answer

5 km/h

Answer

7.5 km/h

Answer

10 km/h

Question 7

How many prime numbers exist between 50 and 70?

Accepted Answer

4

Answer

3

Answer

5

Answer

6