# NRA CGL (National Recruitment Agency-Combined Graduate Level) Mathematics: Questions 248 - 254 of 425

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## Question number: 248

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MCQ▾

### Question

In an alloy, the ratio of copper and zinc is 7: 3. If 1 kg of zinc is mixed in 20 kg of alloy, then the ratio of copper and zinc will be (Paper- I)

### Choices

Choice (4)Response

a.

2: 3

b.

1: 2

c.

3: 2

d.

2: 1

## Question number: 249

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MCQ▾

### Question

If 476 coins consist of rupees, 50 paise and 25 paise coins whose values are in the ratio of , the number of 50 paise coins will be (Paper- I)

### Choices

Choice (4)Response

a.

210

b.

200

c.

190

d.

230

## Question number: 250

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MCQ▾

### Question

By selling an article for Rs. 800, there is a loss of 20%. In order to make a profit of 10%, the selling price of the article must be (Paper - I)

### Choices

Choice (4)Response

a.

Rs. 1400

b.

Rs. 1100

c.

Rs. 1500

d.

Rs. 1300

## Question number: 251

Edit
MCQ▾

### Question

is equal to (Paper-1)

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 252

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MCQ▾

### Question

If then the simplest value of x is

### Choices

Choice (4)Response

a.

b.

1

c.

d.

2

## Question number: 253

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MCQ▾

### Question

A work could be completed by certain workers in 26 days. However, due to 5 workers being absent, it was completed in 30 days. The original number of workers was (Paper - I)

### Choices

Choice (4)Response

a.

25.8

b.

37.9

c.

37.5

d.

17.6

## Question number: 254

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MCQ▾

### Question

The present age of a father is 7 years more than seven times the age of his son. Seven years hence, father’s age will be 20 years more than twice the age of the son. The father’s present age is (Paper- I)

### Choices

Choice (4)Response

a.

29 years

b.

45 years

c.

37 years

d.

35 years

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