# Wipro Placement Questions & Answers :: Wipro

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1 / 338

**Choose the correct option.**

A' and 'B' complete a work togather in 8 days.If 'A' alone can do it in 12 days.Then how many day 'B' will take to complete the work?

A25 days

B24 days

C20 days

DNone of these

**Answer:**** Option B **

**Explanation:**

A & B one day work = 1/8

A alone one day work = 1/12

B alone one day work = (1/8 - 1/12) = ( 3/24 - 2/24)

=> B one day work = 1/24

so B can complete the work in 24 days.

**ShortCut By ::**

**Aradhya**

A = 12, A+B = 8, B = ?

Take LCM of A & A+B = 24.

So, A=12*2 = 24, A+B = 8*3 = 24, B = 1*24 = 24.

Answer: B = 24days.

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2 / 338

**Choose the correct option.**

Ravi's salary was reduced by 25%.Percentage increase to be effected to bring the salary to the original level is

A33 1/3 %

B20%

C25%

D30%

**Answer:**** Option A **

**Explanation:**

Method: 1

Let's assume Ravi salary = 100

It get reduced by 25% => Salary = 75

75(1 + P/100) = 100

1+ P/100 = 4/3

P = 100/3 = 33 1/3%.

Method: 2

You can use directly formula i.e

[(R*100)/(100-R)]% Where 'R' is decresed %

so put 25 at place of 'R'

=> [(25 * 100)/(100 - 25)]% => [(25 *100)/75]%

=>100/3% = 33 1/3%

**ShortCut By ::**

**ongolu Ashok Kumar**

**by using formula =(r*100)/(100-r)=(25*100)/(100-25)%**

** =2500/75**

=33 1/3%

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3 / 338

**Choose the correct option.**

A and B can finish a piece of work in 20 days .B and C in 30 days and C and A in 40 days. In how many days will A alone finish the job

A48

B1/48

C34 2/7

D44

**Answer:**** Option A **

**Explanation:**

Find one day work for all three

(A+B)'s 1 day work = 1/20 ----(1)

(B+C)'s 1 day work = 1/30 ----(2)

and (C+A)'s 1 day work = 1/40 ----(3)

2(A+B+C) 1 day work = (1/20 + 1/30 + 1/40)

=> (A+B+C) = (6+4+3)/2*120

=> (A+B+C) = 13/240 -----------(4)

By eq. (2) and (4)

A + 1/30 = 13/240

=> A = 13/240 - 1/30 = (13-8)/240 = 1/48

then A's 1 day work = 1/48

so A alon can finish the job = 48 days

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4 / 338

**Choose the correct option.**

Two trains each 100 m long, moving in opposite directions, cross each other in 8 seconds. If one is moving twice as fast the other, then the speed of the faster train is

A30 km /hr

B60 km /hr

C30 km /hr

D30 km /hr

**Answer:**** Option B **

**Explanation:**

speed of the faster train = 2x m/sec.

Relative speed of train = (x + 2x) m/sec = 3x m/sec.

Total distance = (100 + 100)m = 200m

3x = 200/8

=> 24x = 200 => x = 25/3

So speed of the faster train = 2 * 25/3 m/sec

= 50/3 m/sec

= 50/3 * 18/5 = 60 km/hr.

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5 / 338

What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?

A3/2

B4

C3

D3/4

**Answer:**** Option A **

**Explanation:**

Here is no explanation for this answer

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6 / 338

The total population of a village is 5000. The number of males and females increases by 10% and 15% respectively and consequently the population of the village becomes 5600. what was the number of males in the village ?

A4000

B3000

C2500

D2000

**Answer:**** Option B **

**Explanation:**

Lets Assume males and females as x and y respectively.

So total Population (x+y)=5000 -----------(1)

Incresed by 10% and 15%

so (x+(10x/100))+(y+15y/100)=5600

=> 110x/100+115y/100=5600

By Solving eq. (1) & (2)

y=2000 x=3000 (i.e Male population)

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7 / 338

**Choose the correct option.**

A thief steals a car at 2.30 p.m and drives it at 60 kmph. The theft is discovered at 3 p.m and the owner sets off in another car at 75 kmph. When will be overtake the thief.

A4.30 p.m

B5.15 p.m

C4.45 p.m

D5:00 p.m

**Answer:**** Option D **

**Explanation:**

As Theft is discovered at 3:00pm but Thief stole the car at 2:30.

This means thief covered some distance in this 30 min gap.

Distance travelled by thief in 30 min = 60 * 1/2 = 30 km

Owner Discovered Car at 3:00pm

Now relative speed = (75-60)km/hr = 15km/hr

Time needed to travel 30km by the speed of 15km/hr.

Time at which owner meets thief = 30/15 = 2 hrs

So After 2 hrs (i.e,at 5:00 pm) the owner will catch/overtake the thief

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8 / 338

**Choose the correct option.**

Fresh fruit contains 68% water and dry fruit contains 20% water. How much dry fruit can be obtained from 100 kg

A20

B30

C40

D50

**Answer:**** Option C **

**Explanation:**

1. Given fresh fruit has 68% water,

=> Remaining 32% will be fruit content.

2. Given Dry fruit has 20% water

=> Remaining 80% is fruit content.

Here assume weight of dry fruit = x kg.

"fruit content in both the fresh fruit and dry fruit is the same"

Fruit % in fresh-fruit = fruit% in dry-fruit

so (32/100) * 100 = (80/100 )* x

=> x = 40 kg.

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9 / 338

A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both taps are opened simultaneously, then after how much time will the cistern get filled ?

A5 hours

B4.5 hours

C7.2 hours

D6.5 hours

**Answer:**** Option C **

**Explanation:**

Time taken by tap A to fill the cistern=4 hrs

so work done by tap A in 1 hour = 1/4th

Time taken by tap B to empty the full cistern = 9 hours

so work done by tap B in 1 hour = 1/9th

=> Work done by (A + B) in 1 hour=(1/4 - 1/9)=5/36

Therefore, the tank will fill the cistern = 36/5 hours=7.2 hours.

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10 / 338

**Choose the correct option.**

Ronald and Elan are working on an assignment. Ronald takes 6 hours to type 32 pages on a computer, while Elan takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages ?

A7.30 hours

B8.15 hours

C8 hours

D8.25 hours

**Answer:**** Option B **

**Explanation:**

Number of pages typed by ronald in 1 hour = 32/6 = 16/3.

Number of pages typed by elan in 1 hour = 40/5 = 8.

Number of pages typed by both in 1 hour = (16/3+8) = 40/3.

Time taken by both to type 110 pages = (110*3/40)hrs = 8 1/4hrs = 8 hrs 15 min.

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Here is the list of questions asked in Wipro Aptitude Test Question with Answers Wipro Mock Test page 1. Practice Wipro Written Test Papers with Solutions and take Q4Interview Wipro Online Test Questions to crack Wipro written round test. Overall the level of the Wipro Online Assessment Test is moderate. Only those candidates who clear the written exam will qualify for the next round, so practic all the questions here and take all the free tests before going for final selection process of Wipro