Speed and Time [NRA CGL (National Recruitment Agency-Combined Graduate Level) Mathematics]: Questions 1 - 5 of 9

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Question number: 1

» Speed and Time

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MCQ▾

Question

A boat goes 15 km downstream and comes back to the starting point in 5 hours. If the speed of the current is 5 km/hr, then the speed (in km/hr) of the boat in still water is

Choices

Choice (4)Response

a.

8

b.

9

c.

12

d.

6

Question number: 2

» Speed and Time

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MCQ▾

Question

A boat goes 12 km downstream and comes back to the starting point in 4 hours. If the speed of the current is 4 km/hr, then the speed (in km/hr) of the boat in still water is

Choices

Choice (4)Response

a.

8

b.

16

c.

2

d.

18

Question number: 3

» Speed and Time

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MCQ▾

Question

A man can row at 15 km/hr in still water. If the velocity of current is 6 km/hr and it takes him 2 hour to row to a place and come back, how far is the place?

Choices

Choice (4)Response

a.

20 km

b.

15 km

c.

12.6 km

d.

13 km

Question number: 4

» Speed and Time

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MCQ▾

Question

A man can row at 5 km/hr in still water. If the velocity of current is 3 km/hr and it takes him 2 hour to row to a place and come back, how far is the place?

Choices

Choice (4)Response

a.

3.6 km

b.

6.4 km

c.

3.2 km

d.

4.5 km

Question number: 5

» Speed and Time

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MCQ▾

Question

A man can row at 8 km/hr in still water. If the velocity of current is 4 km/hr and it takes him 1 hour to row to a place and come back, how far is the place?

Choices

Choice (4)Response

a.

5 km

b.

3 km

c.

2 km

d.

6 km

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