IMO- Mathematics Olympiad Class 8: Questions 133 - 141 of 1029

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Question number: 133

» Square and Square Roots

MCQ▾

Question

Which of the following is not a perfect square?

Choices

Choice (4) Response
a.

100489

b.

5329

c.

23457

d.

12544

Question number: 134

» Square and Square Roots

MCQ▾

Question

If (56+56+56+...)=X , then the value of x is________.

Choices

Choice (4) Response
a.

2

b.

5

c.

4

d.

8

Question number: 135

» Square and Square Roots

MCQ▾

Question

If (42+42+42+...)=X , then the value of x is________.

Choices

Choice (4) Response
a.

3

b.

7

c.

4

d.

5

Question number: 136

» Square and Square Roots

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.

11

b.

14

c.

12

d.

13

Question number: 137

» Square and Square Roots

MCQ▾

Question

The area of a square field is 2046049 sq. m. The length of each side of the field is ________.

Choices

Choice (4) Response
a.

2.30

b.

5.42

c.

2.50

d.

1.92

Question number: 138

» Square and Square Roots

MCQ▾

Question

The value of 3×3 is________.

Choices

Choice (4) Response
a.

0

b.

3

c.

+3

d.

±3

Question number: 139

» Square and Square Roots

MCQ▾

Question

The square root of 253 correct to two decimal places is

Choices

Choice (4) Response
a.

2.86

b.

1.87

c.

2.88

d.

2.33

Question number: 140

» Square and Square Roots

True-False▾

Following Statement is true or false:

If p and q are perfect squares, then pq is always a rational number, is the statement true?

Question number: 141

» Square and Square Roots

MCQ▾

Question

Square root of 0.1442.5×250.36×2.890.04 is________.

Choices

Choice (4) Response
a.

17

b.

11

c.

14

d.

15

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