IMO- Mathematics Olympiad (SOF) Class 8: Questions 707 - 714 of 1029

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Question number: 707

» Playing with Numbers

MCQ▾

Question

If and there is no carry on addition, then the value of B is________.

Choices

Choice (4) Response

a.

0

b.

5

c.

3

d.

1

Question number: 708

» Playing with Numbers

MCQ▾

Question

If divided by 5 leaves a remainder of 4, and divided by 2 leaves a remainder of 1, then the one’s digit of N is________.

Choices

Choice (4) Response

a.

3

b.

4

c.

7

d.

9

Question number: 709

» Playing with Numbers

MCQ▾

Question

If is divisible by 3, where x is a digit less than 5, then the values of x are________.

Choices

Choice (4) Response

a.

3

b.

1

c.

0

d.

2

Question number: 710

» Playing with Numbers

MCQ▾

Question

If and there is no carry on addition, then the value of B is________.

Choices

Choice (4) Response

a.

3

b.

1

c.

5

d.

4

Question number: 711

» Playing with Numbers

MCQ▾

Question

The difference of the squares of two consecutive odd integer is divisible by which of the following integers?

Choices

Choice (4) Response

a.

7

b.

5

c.

8

d.

2

Question number: 712

» Playing with Numbers

MCQ▾

Question

A 5-digit number xy721 is divisible by 3 such that x + y < 5, where x and y are digits, then possible values of (x, y) are________.

Choices

Choice (4) Response

a.

(1,1), (2,0)

b.

(1,2), (2,0)

c.

(0,2), (2,0)

d.

(1,1), (0,2)

Question number: 713

» Playing with Numbers

MCQ▾

Question

A 4 digit number ‘abcd’ is divisible by 8 if________.

Choices

Choice (4) Response

a.

b + c + d is divisible by 8

b.

a + 2b + c + d is divisible by 8

c.

a + b + c is divisible by 8

d.

a + b + c + d is divisible by 8

Question number: 714

» Playing with Numbers

MCQ▾

Question

If a number has unit digit any of 0,2, 4,6, 8. Then it is divisible by________.

Choices

Choice (4) Response

a.

3

b.

2

c.

9

d.

5

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