# NSO Level 1- Science Olympiad (SOF) Class 8: Questions 25 - 31 of 1076

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## Question number: 25

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MCQ▾

### Question

A mixture of 36 litres contains wine and water in the proportion, How much wine must be added to it so that the ratio of wine to water may be?

### Choices

Choice (4) Response

a.

16

b.

8

c.

10

d.

12

## Question number: 26

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MCQ▾

### Question

The HCF of and is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 27

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MCQ▾

### Question

Find the smallest number of five digits exactly divisible by 4,20,22 and 25.

### Choices

Choice (4) Response

a.

11000

b.

12450

c.

10800

d.

10000

## Question number: 28

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MCQ▾

### Question

M’s money is to R’s money as 6: 5 and R’s money is to Y’s money as 5: 3. If M has Rs. 300, Y has________

### Choices

Choice (4) Response

a.

Rs. 150

b.

Rs. 145

c.

Rs. 175

d.

Rs. 170

## Question number: 29

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MCQ▾

### Question

Start with the number y. double it and then subtract 8. If the result is, the value of y is ________?

### Choices

Choice (4) Response

a.

11

b.

7

c.

15

d.

12

## Question number: 30

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MCQ▾

### Question

Four different electronic devices make a beep after every 20 minutes, 40 minutes, 1 hour, and 1 hour 30 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at

### Choices

Choice (4) Response

a.

12 midnights

b.

3 am

c.

6 pm

d.

5 am

## Question number: 31

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MCQ▾

### Question

The HCF of and is

### Choices

Choice (4) Response

a.

b.

c.

d.

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