# Playing With Numbers (IMO- Mathematics Olympiad (SOF) Class 6): Questions 51 - 57 of 86

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 1049 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

## Question number: 51

» Playing With Numbers

MCQ▾

### Question

The number (11,23) are

### Choices

Choice (4) Response

a.

Co-prime numbers

b.

Prime and co-prime

c.

Prime numbers

d.

All of the above

## Question number: 52

» Playing With Numbers

MCQ▾

### Question

The least number of square tiles that will be needed to cover a room of 165 m by 45 m is

### Choices

Choice (4) Response

a.

41 tiles

b.

23 tiles

c.

37 tile

d.

33 tiles

## Question number: 53

» Playing With Numbers

MCQ▾

### Question

What is the least number to be subtracted from 1936 so that when divided by 9,10 and 15 it will leave the same remainder in each case?

### Choices

Choice (4) Response

a.

40

b.

44

c.

38

d.

42

## Question number: 54

» Playing With Numbers

MCQ▾

### Question

A number is always divisible by 72 if

### Choices

Choice (4) Response

a.

It is divisible by both 2 and 36

b.

It is divisible by both 3 and 24

c.

It is divisible by both 6 and 12

d.

All a. , b. and c. are correct

## Question number: 55

» Playing With Numbers

MCQ▾

### Question

When a number is divided by eight, it has a remainder of 2. When it is divided by nine, it has remainder of 1. What is the number?

### Choices

Choice (4) Response

a.

34

b.

10

c.

15

d.

12

## Question number: 56

» Playing With Numbers

MCQ▾

### Question

What least value should be given to * so that the number 653 * 47 is divisible by 11?

### Choices

Choice (4) Response

a.

9

b.

6

c.

7

d.

1

## Question number: 57

» Playing With Numbers

MCQ▾

### Question

The numbers which have more than two factors are called ________.

### Choices

Choice (4) Response

a.

Prime & Composite

b.

Prime

c.

Composite

d.

Question does not provide sufficient data or is vague

f Page