# Mathematics-Direct and Inverse Proportions (NSTSE (National Science Talent Search Exam- Unified Council) Class 8): Questions 1 - 7 of 90

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## Question number: 1

» Mathematics » Direct and Inverse Proportions

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MCQ▾

### Question

42 men can complete a piece of work in 6 days. How many men can complete the same work in 18 days?

### Choices

Choice (4) Response

a.

12

b.

126

c.

18

d.

14

## Question number: 2

» Mathematics » Direct and Inverse Proportions

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MCQ▾

### Question

If , and , then the ratio of is:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 3

» Mathematics » Direct and Inverse Proportions

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MCQ▾

### Question

The ratio of third proportional to 24 and 60 and the mean proportional between 18 and 50 is:

### Choices

Choice (4) Response

a.

3: 2

b.

1: 5

c.

5: 3

d.

5: 1

## Question number: 4

» Mathematics » Direct and Inverse Proportions

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MCQ▾

### Question

x varies inversely as square of y. Given that for . The value of x for will be equal to:

### Choices

Choice (4) Response

a.

3

b.

c.

d.

## Question number: 5

» Mathematics » Direct and Inverse Proportions

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MCQ▾

### Question

If , then is equal to:

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 6

» Mathematics » Direct and Inverse Proportions

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MCQ▾

### Question

A supplier undertook to do a certain piece of work in 36 days. He employed certain number of men, but 8 of them being absent from the very first day, the rest could finish the work in 54 days. The numbers of men originally employed were:

### Choices

Choice (4) Response

a.

16

b.

8

c.

36

d.

24

## Question number: 7

» Mathematics » Direct and Inverse Proportions

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MCQ▾

### Question

If , then is equal to:

### Choices

Choice (4) Response

a.

b.

c.

d.

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