IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 751 - 758 of 1040

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Question number: 751

» Playing with Numbers

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

3

b.

4

c.

7

d.

9

Question number: 752

» Data Handling

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MCQ▾

Question

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

Choices

Choice (4) Response

a.

4

b.

3

c.

2

d.

1

Question number: 753

» Data Handling

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MCQ▾

Question

The number of students watched TV for more than 7 hours is________.

Choices

Choice (4) Response

a.

6

b.

2

c.

5

d.

None of the above

Question number: 754

» Playing with Numbers

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True-False▾

Question

Is the Following Statement True or False?

A number is divisible by 5 when last digit of a number is 0 or 1. This statement is ________.

Question number: 755

» Playing with Numbers

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MCQ▾

Question

A 5-digit number xy978 is divisible by 9 such that x + y < 5, where x and y are digits, then possible values of (x, y) are________.

Choices

Choice (4) Response

a.

(2,1), (0,3) and (1,2)

b.

(1,2), (0,3) and (2,1)

c.

(1,2), (3,0) and (2,1)

d.

None of the above

Question number: 756

» Playing with Numbers

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MCQ▾

Question

If is divided by 5 leaves a remainder of 1, then one’s digit of must be________.

Choices

Choice (4) Response

a.

Either 1 or 2

b.

Either 1 or 4

c.

Either 4 or 5

d.

Question does not provide sufficient data or is vague

Question number: 757

» Playing with Numbers

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MCQ▾

Question

21436587 is divisible by________.

Choices

Choice (4) Response

a.

9

b.

7

c.

2

d.

5

Question number: 758

» Playing with Numbers

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MCQ▾

Question

68790 is divisible by________.

Choices

Choice (4) Response

a.

4

b.

3

c.

5

d.

All of the above