Wipro Quantitative Aptitude Questions And Answers

Wipro Quantitative Aptitude MCQs : This section focuses on “Quantitative Aptitude” for Wipro recruitment exam. These Quantitative Aptitude MCQs are asked in previous Wipro placements/recruitment exams and will help you to prepare for upcoming Wipro drives.

**The least perfect square, which is divisible by each of 5, 15 and 35 is?**

A. 10125

B. 7056

C. 7350

D. 11025

View Answer

Ans : D

Explanation: L.C.M. of 5, 15, 35 = 105

Now, 1820= 5 * 3 * 7

To make it a perfect square, it must be multiplied by 5 * 3 * 7

So, required number = 5 * 3 * 7

= 25 * 9 * 49 = 11025

**A and B are two number when divided by 4 leaves a remainder 2 and 1. What will be the remainder when A+B is divided by 4 ?**

A. 4

B. 7

C. 11

D. 13

View Answer

Ans : B

Explanation: A=4a+2

B=4b+1

A+B=4(a+b)+3

A+B=4(a-b)-4+4+3 [by adding -4 and +4] A+B=4(a+b-1)+7 As seen above, if we divide A+B by 4, the remainder will be 7.

**Both X and Y randomly choose a colour from black, blue, and white. What is the probability that both choose orange?**

A. (1/3)

B. (2/9)

C. (1/9)

D. (2/3)

View Answer

Ans : C

Explanation: There are three different colours possible to be chosen.

Probability that X chooses orange colour = 1/3

(blue is 1 among the 3 possible colours)

Probability that Y chooses blue colour = 1/3

Probability that both X and Y choose blue colour = 1/3 × 1/3 = 1/9

**By what number should be 17325 divided to make it a perfect square?**

A. 7×11

B. 5×13

C. 5×7

D. 11×13

View Answer

Ans : A

Explanation: First Prime Factorize 17325, that Gives;

17325 = 3*3*5*5*7*11 As a factor of 7*11 is not in Pair.

17325 should be divided by 7*11 to get a Perfect Square i.e. 17325/(7*11) = 225

**The sum of a number and the two numbers preceding it is equal to 30. Find the number:**

A. 7

B. 8

C. 9

D. 10

View Answer

Ans : C

Explanation: X+Y+Z=30 —- 1

Y=X-1 —— 2

Z=X-2 —— 3

Put 2 and 3 in 1

X+X-1+X-2 = 30

3X = 27

X = 9

**Sanjay invested an amount of Rs 16,000 for two years on compound interest and received an amount of RS 17,640 on maturity. What is the rate of interest per annum?**

A. 0.05

B. 0.06

C. 0.07

D. 0.08

View Answer

Ans : A

Explanation: Amount =P(1+r/100)^2

17640/16000= (1+r/100)^2

441/400= (1+r/100)^2

=> (21/20)^2= (1+r/100)^2

R=5%

**X can do 20% of a piece of work in 5 days. How many days will he take to complete the work five times ?**

A. 100 days

B. 125 days

C. 150 days

D. 200 days

View Answer

Ans : B

Explanation: x is completing 20% of the work in 5 days he will complete 100% of the work in (100/20) x 5 = 25 days

If x will complete 100% of the work in 25 days then he will complete 5 times the work in 25 x 5 = 125 days.

**A tap having a diameter(d) can empty a tank in 84 min. How long another tap having diameter 2d take to empty the same tank?**

A. 21 mins

B. 25 mins

C. 27 mins

D. 36 mins

View Answer

Ans : A

Explanation: Area = work done

Area = πr*r

Since it is square of radius when radius or diameter doubles its area becomes 4 times

When area becomes 4 times work done also becomes 4 times

So time taken by tap with diameter 2d to empty the tank = 84/4 =21 mins

**In a stream running at 2 km/h, a motor boat goes 10 km upstream and back again to the starting point in 55 min. The speed of the motorboat in still water is**

A. 19 km/h

B. 20 km/h

C. 21 km/h

D. 22 km/h

View Answer

Ans : D

Explanation: Let “x” be the speed of Motor boat in still water

Distance = 10 km; Time = 55/60 hrs For upstream, the speed of motorboat = x – 2

For downstream, the speed of motorboat = x + 2

55 / 60 = 10/ (x – 2) + 10/(x + 2) So, x = 22.

**For Question, if subsequently in 1983, the cost of labor and overheads increased by 30%, and 10% respectively, calculate the cost of manufacturing in 1983.**

A. 360

B. 740

C. 1080

D. 920

View Answer

Ans : B

Explanation: The costs in 1983 were 400 and 200 respectively. An increase of 30% in labor Æ increase of 120.

Increase of 10% in overheads increase of 20.

Total Increase = 120 + 20 = 140.

New cost = 600 + 140 = 740

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