IMO- Mathematics Olympiad Class 6: Questions 211 - 218 of 1049

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Question number: 211

» 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: 212

» Number Systems

MCQ▾

Question

The integer which is 5 less than [7+(4)] is

Choices

Choice (4) Response

a.

11

b.

2

c.

9

d.

2

Question number: 213

» 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: 214

» 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: 215

» 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

Question number: 216

» Playing With Numbers

MCQ▾

Question

The LCM of two numbers is 198. If one number is 396 and another is 66, then the HCF is

Choices

Choice (4) Response

a.

231

b.

132

c.

144

d.

154

Question number: 217

» Number Systems

MCQ▾

Question

The integer which is 7 more than [6+3] is

Choices

Choice (4) Response

a.

4

b.

- 10

c.

16

d.

- 4

Question number: 218

» Number Systems

MCQ▾

Question

There are 216 black balls in a basket. A boy takes out 8 black balls from it and replaces them by 16 white balls. He continues to do so, till all black balls are replaced by white balls. Find the number of white balls put in the basket?

Choices

Choice (4) Response

a.

485

b.

654

c.

432

d.

462

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