IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 744 - 750 of 1040

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Question number: 744

» Playing with Numbers

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MCQ▾

Question

If a 3-digit number ‘abc’ is divisible by 4, then________.

Choices

Choice (4) Response

a.

is a multiple of 4

b.

is a multiple of 4

c.

is a multiple of 4

d.

is a multiple of 4

Question number: 745

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MCQ▾

Question

When a certain number is multiplied by 12, the product consists entirely of fours. The smallest such number is________.

Choices

Choice (4) Response

a.

3715

b.

3701

c.

3700

d.

3703

Question number: 746

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MCQ▾

Question

A 3 digit number ‘abc’ is divisible by 3 if________.

Choices

Choice (4) Response

a.

a + b + c is divisible by 3

b.

a + b + 2c is divisible by 9

c.

2a + b + c is divisible by 9

d.

a + 2b + c is divisible by 9

Question number: 747

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MCQ▾

Question

The least value of x so that 48176 × 3 is divisible by 9 is________.

Choices

Choice (4) Response

a.

9

b.

5

c.

11

d.

7

Question number: 748

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MCQ▾

Question

The least value must be given to x so that the number 6148 × 2 is divisible by 8 is________.

Choices

Choice (4) Response

a.

1

b.

3

c.

2

d.

4

Question number: 749

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MCQ▾

Question

If a 5-digit number ‘abcde’ is divisible by 8, then________.

Choices

Choice (4) Response

a.

is a multiple of 8

b.

is a multiple of 8

c.

is a multiple of 8

d.

is a multiple of 8

Question number: 750

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MCQ▾

Question

If , where A and B are single digit number such that , then the values of A and B are________.

Choices

Choice (4) Response

a.

4,5

b.

5,4

c.

6,9

d.

9,6