IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 127 - 136 of 1040

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Question number: 127

» Square and Square Roots

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MCQ▾

Question

Find the smallest square number which is exactly divisible by 15,25, and 30 is, ________

Choices

Choice (4)Response

a.

500

b.

180

c.

100

d.

900

Question number: 128

» Square and Square Roots

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MCQ▾

Question

The value of is________.

Choices

Choice (4)Response

a.

0

b.

c.

d.

Question number: 129

» Square and Square Roots

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MCQ▾

Question

If , then equals________.

Choices

Choice (4)Response

a.

4

b.

1

c.

3

d.

2

Question number: 130

» Square and Square Roots

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MCQ▾

Question

The value of is________.

Choices

Choice (4)Response

a.

2

b.

c.

d.

Both b. and c. are correct

Question number: 131

» Square and Square Roots

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MCQ▾

Question

The least two digit number, which is a perfect square is ________

Choices

Choice (4)Response

a.

4

b.

16

c.

12

d.

9

Question number: 132

» Square and Square Roots

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MCQ▾

Question

Find the smallest square number which is exactly divisible by 8,12,15, and 20 is, ________

Choices

Choice (4)Response

a.

180

b.

2500

c.

900

d.

3600

Question number: 133

» Square and Square Roots

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MCQ▾

Question

Which of the following is not a perfect square?

Choices

Choice (4)Response

a.

12544

b.

23457

c.

100489

d.

5329

Question number: 134

» Square and Square Roots

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MCQ▾

Question

If , then the value of is________.

Choices

Choice (4)Response

a.

5

b.

4

c.

8

d.

2

Question number: 135

» Square and Square Roots

Edit
MCQ▾

Question

If , then the value of is________.

Choices

Choice (4)Response

a.

7

b.

4

c.

3

d.

5

Question number: 136

» Square and Square Roots

Edit
MCQ▾

Question

A number is multiplied by half of itself and then 10 is added to the product. If the final result is 82, then find the original number.

Choices

Choice (4)Response

a.

14

b.

13

c.

11

d.

12

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