IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 131 - 139 of 1040

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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

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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

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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

Question number: 137

» Square and Square Roots

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MCQ▾

Question

The area of a square field is sq. m. The length of each side of the field is ________.

Choices

Choice (4) Response

a.

2.50

b.

5.42

c.

2.30

d.

1.92

Question number: 138

» Square and Square Roots

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MCQ▾

Question

The value of is________.

Choices

Choice (4) Response

a.

3

b.

c.

d.

0

Question number: 139

» Square and Square Roots

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MCQ▾

Question

The square root of correct to two decimal places is

Choices

Choice (4) Response

a.

2.86

b.

1.87

c.

2.88

d.

2.33