# Playing With Numbers (IMO- Mathematics Olympiad Class 6): Questions 26 - 33 of 86

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## Question number: 26

» Playing With Numbers

MCQ▾

### Question

The LCM of two numbers is 138. If one of the numbers is 46 and another is 69, then the HCF is

### Choices

Choice (4) Response

a.

23

b.

13

c.

28

d.

29

## Question number: 27

» Playing With Numbers

MCQ▾

### Question

The number 3, 116, 365 is divisible by

### Choices

Choice (4) Response

a.

5

b.

5 & 7

c.

7

d.

Question does not provide sufficient data or is vague

## Question number: 28

» Playing With Numbers

MCQ▾

### Question

Find the smallest number which will divide the greatest 3-digit number and the greatest 5-digit number exactly.

### Choices

Choice (4) Response

a.

9

b.

8

c.

7

d.

3

## Question number: 29

» Playing With Numbers

MCQ▾

### Question

Which of the following is a perfect square?

### Choices

Choice (4) Response

a.

36

b.

36 & 81

c.

37

d.

81

## Question number: 30

» Playing With Numbers

MCQ▾

### Question

A, M, T, I represent different non-zero digits, It is given that A + M + T + I – 11

A + M + I – 10

A + M – 1

Further in the following addition only one digit is given.

The sum will be?

### Choices

Choice (4) Response

a.

Sum is 35725734

b.

Sum is 35725792

c.

Sum is 34425792

d.

Sum is 35722292

## Question number: 31

» Playing With Numbers

MCQ▾

### Question

2592 is divisible by

### Choices

Choice (4) Response

a.

6

b.

8

c.

3

d.

All a. , b. and c. are correct

## Question number: 32

» Playing With Numbers

MCQ▾

### Question

The two numbers which have only 1 as their common factor are called

### Choices

Choice (4) Response

a.

Twin primes

b.

Co-primes

c.

Composite

d.

Even numbers

## Question number: 33

» Playing With Numbers

MCQ▾

### Question

The co-prime numbers from the following pairs, is

### Choices

Choice (4) Response

a.

27 and 81

b.

18 and 26

c.

45 and 16

d.

24 and 32

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