Playing With Numbers (IMO- Mathematics Olympiad Class 6): Questions 50 - 57 of 86

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Question number: 50

» Playing With Numbers

MCQ▾

Question

The smallest number which when divided by 9, 12, 24 and 30 and leaves a remainder of 2, 5, 17 and 23 respectively is

Choices

Choice (4) Response

a.

353

b.

453

c.

657

d.

367

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

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