# Cognizant Aptitude Questions with Answers

8 previously-asked aptitude questions from Cognizant's hiring process, each with the correct answer and a worked explanation. Written against the company's actual test pattern.

_Source: Astra (https://useastra.in). Updated 2026-09-05._

### 1. If 40% of a number is 120, what is 75% of the same number?

A. 225
B. 240
C. 200
D. 180

**Answer:** 225

**Explanation:** The number is 120/0.40 = 300, and 75% of 300 = 225.

### 2. A man buys an article for Rs 27.50 and sells it for Rs 28.60. Find his gain percent.

A. 4%
B. 5%
C. 3%
D. 6%

**Answer:** 4%

**Explanation:** Gain = 1.10; gain percent = 1.10/27.50*100 = 4%.

### 3. 12 men can complete a work in 8 days. How many men are needed to complete the same work in 6 days?

A. 16
B. 14
C. 18
D. 20

**Answer:** 16

**Explanation:** Total work = 12*8 = 96 man-days; 96/6 = 16 men.

### 4. A car covers 240 km in 4 hours. What is its average speed?

A. 60 km/hr
B. 55 km/hr
C. 65 km/hr
D. 50 km/hr

**Answer:** 60 km/hr

**Explanation:** Average speed = 240/4 = 60 km/hr.

### 5. The average of 5 consecutive numbers is 30. What is the largest of these numbers?

A. 32
B. 34
C. 31
D. 33

**Answer:** 32

**Explanation:** The middle number is 30, so the numbers are 28 to 32 and the largest is 32.

### 6. If a:b = 2:3 and b:c = 4:5, find a:c.

A. 8:15
B. 2:5
C. 6:15
D. 8:12

**Answer:** 8:15

**Explanation:** Make b common: a:b = 8:12 and b:c = 12:15, so a:c = 8:15.

### 7. What is the remainder when 2^10 is divided by 7?

A. 2
B. 1
C. 4
D. 0

**Answer:** 2

**Explanation:** 2^3 = 8 leaves remainder 1 mod 7, so 2^10 = (2^3)^3 * 2 leaves 1*2 = 2.

### 8. A is twice as old as B. Ten years ago, A was three times as old as B. Find A's present age.

A. 40
B. 30
C. 50
D. 45

**Answer:** 40

**Explanation:** A = 2B and A-10 = 3(B-10) give 2B-10 = 3B-30, so B = 20 and A = 40.

More Cognizant preparation, including the full recruitment process: https://useastra.in/campus/cognizant