IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 741 - 748 of 1040

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Question number: 741

» Playing with Numbers

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MCQ▾

Question

The number is divisible by 11 for________.

Choices

Choice (4)Response

a.

Odd value of n

b.

For all Naturals numbers

c.

Even value of n

d.

None of the above

Question number: 742

» Playing with Numbers

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MCQ▾

Question

213456 is divisible by________.

Choices

Choice (4)Response

a.

5

b.

2

c.

7

d.

None of the above

Question number: 743

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MCQ▾

Question

The least value of x so that 517 × 324 is divisible by 3 is________.

Choices

Choice (4)Response

a.

2

b.

3

c.

5

d.

4

Question number: 744

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MCQ▾

Question

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

Choices

Choice (4)Response

a.

is an integer

b.

is an integer

c.

is an integer

d.

is an integer

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.

377

b.

37

c.

39

d.

373

Question number: 746

» Playing with Numbers

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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

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