Mathematics-Playing with Numbers (NSTSE (National Science Talent Search Exam- Unified Council) Class 8): Questions 1 - 8 of 44

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Question number: 1

» Mathematics » Playing with Numbers

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MCQ▾

Question

The number 1,53,690 is divisible by

Choices

Choice (4) Response

a.

2

b.

5

c.

5 & 2

d.

All of the above

Question number: 2

» Mathematics » Playing with Numbers

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Question

There is one number which is formed by writing one digit 6 times (e. g. 111111,666666 etc. ). Such a number is always divisible by:

Choices

Choice (4) Response

a.

7 only

b.

11 only

c.

13 only

d.

All a. , b. and c. are correct

Question number: 3

» Mathematics » Playing with Numbers

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Question

What value should be given to * so that the number 63 * 474 is divisible by 11?

Choices

Choice (4) Response

a.

9

b.

1

c.

7

d.

3

Question number: 4

» Mathematics » Playing with Numbers

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Question

What value should be given to * so that the number 728 * 84 is divisible by 11?

Choices

Choice (4) Response

a.

3

b.

6

c.

2

d.

0

Question number: 5

» Mathematics » Playing with Numbers

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Question

In which of the following pairs of numbers it is true that their product is one fifth of their sum?

Choices

Choice (4) Response

a.

1,

b.

1,

c.

1,

d.

1,4

Question number: 6

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MCQ▾

Question

The number 8,775,540 is divisible by

Choices

Choice (4) Response

a.

5

b.

5 & 9

c.

9

d.

Question does not provide sufficient data or is vague

Question number: 7

» Mathematics » Playing with Numbers

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MCQ▾

Question

The number 567 is divisible by each of the following numbers except ________.

Choices

Choice (4) Response

a.

9

b.

6

c.

3

d.

Question does not provide sufficient data or is vague

Question number: 8

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MCQ▾

Question

Which of the following numbers is exactly divisible by 99?

Choices

Choice (4) Response

a.

114345

b.

125792

c.

3572404

d.

913464

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