# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 166 - 174 of 1030

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## Question number: 166

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: 167

MCQ▾

### Question

Square root of is________.

### Choices

Choice (4) Response

a.

0.5

b.

0.2

c.

0.4

d.

0.1

## Question number: 168

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: 169

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: 170

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: 171

MCQ▾

### Question

Find the value of .

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 172

MCQ▾

### Question

If = 5, then = ________.

### Choices

Choice (4) Response

a.

400

b.

100

c.

169

d.

144

## Question number: 173

True-False▾

### Is the Following Statement True or False?

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

## Question number: 174

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