IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 169 - 177 of 1040

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Question number: 169

» Square and Square Roots

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MCQ▾

Question

A number is multiplied by half to itself and then 5 is subtracted from the product. If the final result is 123, then find the original number.

Choices

Choice (4) Response

a.

12

b.

11

c.

16

d.

14

Question number: 170

» Square and Square Roots

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MCQ▾

Question

The number must be subtracted from 6089 to get a perfect square is________.

Choices

Choice (4) Response

a.

7

b.

8

c.

5

d.

18

Question number: 171

» Square and Square Roots

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MCQ▾

Question

Find the value of .

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 172

» Square and Square Roots

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MCQ▾

Question

If = 5, then = ________.

Choices

Choice (4) Response

a.

100

b.

400

c.

144

d.

169

Question number: 173

» Square and Square Roots

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True-False▾

Question

Is the Following Statement True or False?

Square root of a negative numbers are imaginary number. This statement is________

Question number: 174

» Square and Square Roots

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MCQ▾

Question

A number is multiplied by itself and then 72 is subtracted from the product. If the final result is 5928, then find the original number.

Choices

Choice (4) Response

a.

36

b.

62

c.

60

d.

50

Question number: 175

» Square and Square Roots

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MCQ▾

Question

If , then the value of is________.

Choices

Choice (4) Response

a.

3

b.

4

c.

5

d.

2

Question number: 176

» Square and Square Roots

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MCQ▾

Question

Find the smallest square number which is exactly divisible by 5 6,9 and 12 is, ________

Choices

Choice (4) Response

a.

500

b.

180

c.

100

d.

900

Question number: 177

» Square and Square Roots

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MCQ▾

Question

Square root of 6084 is________.

Choices

Choice (4) Response

a.

76

b.

78

c.

87

d.

77