# Mathematics-Comparing Quantities (NSTSE (National Science Talent Search Exam- Unified Council) Class 7): Questions 1 - 9 of 134

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## Question number: 1

» Mathematics » Comparing Quantities

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MCQ▾

### Question

First, second and third terms of a proportion are 5,30 and 20. Then fourth term is

### Choices

Choice (4) Response

a.

80

b.

60

c.

30

d.

120

## Question number: 2

» Mathematics » Comparing Quantities

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MCQ▾

### Question

In the given proportion 2: 3: : 24: 36 extremes are

### Choices

Choice (4) Response

a.

3,24

b.

2,36

c.

3,36

d.

2,24

## Question number: 3

» Mathematics » Comparing Quantities

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MCQ▾

### Question

The ratio of the heights of A and B is 5: 7. If B is 2.1 m tall, then the height of A is

### Choices

Choice (4) Response

a.

1.5 m

b.

0.3 m

c.

1.8 m

d.

2.8 m

## Question number: 4

» Mathematics » Comparing Quantities

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MCQ▾

### Question

Are they in proportion 8: 2 and 4: 16?

### Choices

Choice (4) Response

a.

No

b.

Yes

c.

Sometimes

d.

None of the above

## Question number: 5

» Mathematics » Comparing Quantities

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MCQ▾

### Question

Ratio symbol is ________ and is read as ________.

### Choices

Choice (4) Response

a.

=, equal to

b.

: , is to

c.

: : , equal to

d.

None of the above

## Question number: 6

» Mathematics » Comparing Quantities

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MCQ▾

### Question

For 20: 10: : 10: 5, the mean proportion is

### Choices

Choice (4) Response

a.

10

b.

100

c.

5

d.

20

## Question number: 7

» Mathematics » Comparing Quantities

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MCQ▾

### Question

When a number is reduced by 14, it becomes 30 % of itself. Find the number.

### Choices

Choice (4) Response

a.

70

b.

20

c.

30

d.

60

## Question number: 8

» Mathematics » Comparing Quantities

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MCQ▾

### Question

The ratio of the least prime number to the least composite number is

### Choices

Choice (4) Response

a.

1: 3

b.

1: 4

c.

1: 2

d.

2: 3

## Question number: 9

» Mathematics » Comparing Quantities

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MCQ▾

### Question

The length and width of a tape are 3 m and 27 cm. Write their ratio.

### Choices

Choice (4) Response

a.

10: 9

b.

100: 9

c.

9: 10

d.

9: 100

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