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

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## Question 1

Comparing Quantities
Edit

### Question

MCQ▾

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 2

Comparing Quantities
Edit

### Question

MCQ▾

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 3

Comparing Quantities
Edit

### Question

MCQ▾

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 4

Comparing Quantities
Edit

### Question

MCQ▾

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 5

Comparing Quantities
Edit

### Question

MCQ▾

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 6

Comparing Quantities
Edit

### Question

MCQ▾

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

### Choices

Choice (4)Response
a.10
b.100
c.5
d.20

## Question 7

Comparing Quantities
Edit

### Question

MCQ▾

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 8

Comparing Quantities
Edit

### Question

MCQ▾

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 9

Comparing Quantities
Edit

### Question

MCQ▾

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