IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 122 - 131 of 1042

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Question 122

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Question

MCQ▾

If , then can be

Choices

Choice (4)Response
a.13
b.12
c.11
d.15

Question 123

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Question

MCQ▾

Square root of 2401 is________.

Choices

Choice (4)Response
a.87
b.78
c.49
d.76

Question 124

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Question

MCQ▾

A number is multiplied by itself and then 15 is subtracted from the product. If the final result is 2545, then find the original number.

Choices

Choice (4)Response
a.30
b.31
c.13
d.32

Question 125

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Question

MCQ▾

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

Choices

Choice (4)Response
a.2.00
b.2.50
c.4.00
d.1.92

Question 126

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Question

MCQ▾

The number must be subtracted from 13245 to get a perfect square is________.

Choices

Choice (4)Response
a.15
b.20
c.11
d.10

Question 127

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Question

MCQ▾

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 128

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Question

MCQ▾

The value of is________.

Choices

Choice (4)Response
a.0
b.
c.
d.

Question 129

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Question

MCQ▾

If , then equals________.

Choices

Choice (4)Response
a.4
b.1
c.3
d.2

Question 130

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Question

MCQ▾

The value of is________.

Choices

Choice (4)Response
a.2
b.
c.
d.Both b. and c. are correct

Question 131

Edit

Question

MCQ▾

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

Choices

Choice (4)Response
a.4
b.16
c.12
d.9