Wipro Placement: Sample Questions 13 - 15 of 24

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Question 13

Question

MCQ▾

A man travels 5km by train in a 30kmph speed. Then he travels 10km from there by a bus. If his total travel time is 30mins, what is the speed of the bus in which he travelled?

Choices

Choice (4)

a.

15 kmph

b.

30 kmph

c.

45 kmph

d.

60 kmph

Answer

b.

Explanation

Time taken by man to cover distance of 5 km with speed 30 kmph speed is,

Man travels 10 km distance by bus within 20 minutes.

We are asked to find the speed of the bus.

Hence, speed of the bus is 30 kmph.

Question 14

Question

MCQ▾

what՚s the binary equivalent of 256?

Choices

Choice (4)

a.

1111 1100

b.

1111 1010

c.

1110 1000

d.

None of the above

Answer

d.

Explanation

In binary representation, any number can be represented as 28, 27, 26, 25, 24, 23, 22,21, 20.

We know, , , , , , , ,

We are asked to find the binary equivalent of 256.

It will be, 256 = 128 + 64 + 32 + 16 + 8 + 4 + 2 + 1

So, its binary representation will be 1111 1111.

But no correct option is there. So, binary equivalent of 256 will be none of the given options.

Question 15

Question

MCQ▾

9 labours can complete the construction of a wall in 18 days. How many less days will 12 labours take to complete the construction of same wall?

Choices

Choice (4)

a.

0.5

b.

13.5

c.

2.5

d.

4.5

Answer

d.

Explanation

9 labours can complete the construction of a wall in 18 days.

We are asked to find the number of fewer days required by 12 labours to complete the construction of same wall.

Let 12 labours take x days to complete the construction of wall.

So, 12 labours will require 13.5 days to complete the construction of wall.

So, 12 labours will require less days to complete the construction of wall.

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