# NRA CGL (National Recruitment Agency-Combined Graduate Level) Mathematics: Questions 140 - 144 of 425

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## Question number: 140

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MCQ▾

### Question

The value of correct to 3 places of decimals is

### Choices

Choice (4)Response

a.

3.237

b.

2.141

c.

3.732

d.

2.236

## Question number: 141

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MCQ▾

### Question

A man travelled a certain distance by train at the rate of 30 km/hour and walked back at the rate of 5 km per hour. It the whole journey took 2 hours 48 minutes, the distance was

### Choices

Choice (4)Response

a.

30 km

b.

25 km

c.

12 km

d.

20 km

## Question number: 142

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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

## Question number: 143

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MCQ▾

### Question

A man goes from Surat to Mumbai at a uniform speed of 60 km/hr and comes back to Surat at a uniform speed of 40 km/hr. his average speed for the whole journey is:

### Choices

Choice (4)Response

a.

48 km/hr

b.

54 km/hr

c.

55 km/hr

d.

50 km/hr

## Question number: 144

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MCQ▾

### Question

A tap can fill a cistern in 30 minutes and a second tap can empty the filled cistern in 20 minutes. By mistake without closing the second tap, the first tap was opened. In how many minutes will the empty tank be filled?

### Choices

Choice (4)Response

a.

30

b.

80

c.

10

d.

70

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