IMO- Mathematics Olympiad Class 8: Questions 746 - 752 of 1029

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Question number: 746

» Playing With Numbers

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

» Playing With Numbers

MCQ▾

Question

The least value of x so that 48176x3 is divisible by 9 is________.

Choices

Choice (4) Response

a.

9

b.

11

c.

5

d.

7

Question number: 748

» Playing With Numbers

MCQ▾

Question

The least value must be given to x so that the number 6148x2 is divisible by 8 is________.

Choices

Choice (4) Response

a.

1

b.

4

c.

2

d.

3

Question number: 749

» Playing With Numbers

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation is a multiple of 8

b.

Equation is a multiple of 8

c.

Equation is a multiple of 8

d.

Equation is a multiple of 8

Question number: 750

» Playing With Numbers

MCQ▾

Question

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

Choices

Choice (4) Response

a.

4, 5

b.

5, 4

c.

6, 9

d.

9, 6

Question number: 751

» Playing With Numbers

MCQ▾

Question

If Equation divided by 13 leaves a remainder of 11, and Equation divided by 17 leaves a remainder of 9, then the one’s digit of N is________.

Choices

Choice (4) Response

a.

3

b.

7

c.

4

d.

9

Question number: 752

» Data Handling

MCQ▾

Question

A tetrahedron has 4 Faces, 6 Edges then the number of vertices (using Euler’s formula) is________.

Choices

Choice (4) Response

a.

2

b.

1

c.

3

d.

4

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