Square and Square Roots (IMO- Mathematics Olympiad Class 8): Questions 38 - 47 of 67

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Question number: 38

» Square and Square Roots

MCQ▾

Question

Square root of any number is________.

Choices

Choice (4) Response

a.

Always positive

b.

Always negative

c.

Positive or negative

d.

Question does not provide sufficient data or is vague

Question number: 39

» Square and Square Roots

MCQ▾

Question

Which of the following is a perfect square?

Choices

Choice (4) Response

a.

1777

b.

23457

c.

2500

d.

1638

Question number: 40

» Square and Square Roots

MCQ▾

Question

Square root of 1471369 is________.

Choices

Choice (4) Response

a.

1312

b.

1123

c.

1213

d.

2131

Question number: 41

» Square and Square Roots

MCQ▾

Question

If 5(x1)2=180 , then x can be

Choices

Choice (4) Response

a.

13

b.

15

c.

12

d.

7

Question number: 42

» Square and Square Roots

MCQ▾

Question

The area of a square field is 117252500 sq. m. The length of each side of the field is ________.

Choices

Choice (4) Response

a.

1.92

b.

2.50

c.

4.00

d.

2.30

Question number: 43

» Square and Square Roots

MCQ▾

Question

274+211+196 = ________

Choices

Choice (4) Response

a.

13

b.

17

c.

14

d.

15

Question number: 44

» Square and Square Roots

MCQ▾

Question

If 0.4+0.25=x then value of x is________.

Choices

Choice (4) Response

a.

4

b.

2

c.

3

d.

1

Question number: 45

» Square and Square Roots

MCQ▾

Question

If (a2+b2+2ab)=4 , and value of b=2 then a=_____.

Choices

Choice (4) Response

a.

1

b.

0

c.

3

d.

2

Question number: 46

» Square and Square Roots

MCQ▾

Question

The number must be subtracted from 2329 to get a perfect square is________.

Choices

Choice (4) Response

a.

25

b.

10

c.

15

d.

20

Question number: 47

» Square and Square Roots

MCQ▾

Question

Square root of 0.0250.0064×0.5762.25×3.614.4 is________.

Choices

Choice (4) Response

a.

0.5

b.

0.2

c.

0.4

d.

0.1

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