IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 173 - 181 of 1042

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Question 173

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Statement

True-False▾

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

Question 174

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Question

MCQ▾

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 175

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Question

MCQ▾

If , then the value of is________.

Choices

Choice (4)Response
a.3
b.4
c.5
d.2

Question 176

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Question

MCQ▾

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 177

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Question

MCQ▾

Square root of 6084 is________.

Choices

Choice (4)Response
a.76
b.78
c.87
d.77

Question 178

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Question

MCQ▾

If = 4, then = ________.

Choices

Choice (4)Response
a.123
b.100
c.144
d.169

Question 179

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Question

MCQ▾

The greatest four digit number, which is a perfect square is ________.

Choices

Choice (4)Response
a.9801
b.9805
c.9901
d.9900

Question 180

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Question

MCQ▾

Which of the following is not a perfect square?

Choices

Choice (4)Response
a.1638
b.16384
c.100489
d.5329

Question 181

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Question

MCQ▾

A number is multiplied by itself and then 10 is subtracted from the product. If the final result is 590, then find the original number.

Choices

Choice (4)Response
a.60
b.36
c.30
d.50