# Real Numbers (IMO- Mathematics Olympiad (SOF) Class 10): Questions 20 - 27 of 89

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## Question number: 20

» Real Numbers

MCQ▾

### Question

Given that H. C. F, find L. C. M.

### Choices

Choice (4) Response

a.

100620

b.

100420

c.

100520

d.

100320

## Question number: 21

» Real Numbers

MCQ▾

### Question

Rational number between and is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 22

» Real Numbers

MCQ▾

### Question

A eight digit number is a multiple of 73 and 137. If the second digit from left is 7, then 6th digit from the left of the number is ________

### Choices

Choice (4) Response

a.

3

b.

5

c.

7

d.

9

## Question number: 23

» Real Numbers

MCQ▾

is ________

### Choices

Choice (4) Response

a.

An integer

b.

A natural number

c.

An irrational number

d.

A rational number

## Question number: 24

» Real Numbers

MCQ▾

### Question

If ‘a’ and ‘b’ are rational numbers and , then b = ________

### Choices

Choice (4) Response

a.

4

b.

6

c.

7

d.

8

## Question number: 25

» Real Numbers

MCQ▾

### Question

If , then s equals________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 26

» Real Numbers

MCQ▾

### Question

Value of is ________

### Choices

Choice (4) Response

a.

1

b.

4

c.

0

d.

2

## Question number: 27

» Real Numbers

MCQ▾

### Question

A circular field has a circumference of 360 km. Two cyclists Sumeet and Samrat start together and can cycle at speeds of 12 km/hr and 15 km/hr respectively round the circular field. After how many hours will they meet again at the starting point?

### Choices

Choice (4) Response

a.

b.

c.

d.

f Page