IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 743 - 750 of 1042

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Question 743

Question

MCQ▾

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

Choices

Choice (4)Response

a.

2

b.

3

c.

5

d.

4

Question 744

Question

MCQ▾

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 745

Question

MCQ▾

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 746

Question

MCQ▾

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 747

Question

MCQ▾

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

Choices

Choice (4)Response

a.

9

b.

5

c.

11

d.

7

Question 748

Question

MCQ▾

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

Choices

Choice (4)Response

a.

1

b.

3

c.

2

d.

4

Question 749

Question

MCQ▾

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

Choices

Choice (4)Response

a.

is an integer

b.

is an integer

c.

is an integer

d.

is an integer

Question 750

Question

MCQ▾

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