# Square and Square Roots (IMO- Mathematics Olympiad Class 8): Questions 48 - 55 of 67

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## Question number: 48

» Square and Square Roots

MCQ▾

### Question

A number is multiplied by itself and then 6 is added to the product. If the final result is 175, then find the original number.

### Choices

Choice (4) Response

a.

14

b.

13

c.

16

d.

12

## Question number: 49

» Square and Square Roots

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.

16

c.

14

d.

11

## Question number: 50

» Square and Square Roots

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

8

b.

7

c.

5

d.

18

## Question number: 51

» Square and Square Roots

MCQ▾

### Question

Find the value of .

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 52

» Square and Square Roots

MCQ▾

### Question

If = 5, then = ________.

### Choices

Choice (4) Response

a.

400

b.

100

c.

169

d.

144

## Question number: 53

» Square and Square Roots

True-False▾

### Following Statement is true or false:

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

## Question number: 54

» Square and Square Roots

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.

60

c.

50

d.

62

## Question number: 55

» Square and Square Roots

MCQ▾

### Question

If , then the value of is________.

### Choices

Choice (4) Response

a.

3

b.

4

c.

2

d.

5

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