# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 171 - 180 of 1042

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## Question 171

### Question

MCQ▾

Find the value of .

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 172

### Question

MCQ▾

If = 5, then = ________.

### Choices

Choice (4)Response

a.

100

b.

400

c.

144

d.

169

## Question 173

Edit

### Statement

True-False▾

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

## Question 174

### Question

MCQ▾

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.

62

c.

60

d.

50

## Question 175

### Question

MCQ▾

If , then the value of is________.

### Choices

Choice (4)Response

a.

3

b.

4

c.

5

d.

2

## Question 176

### Question

MCQ▾

Find the smallest square number which is exactly divisible by 5 6,9 and 12 is, ________

### Choices

Choice (4)Response

a.

500

b.

180

c.

100

d.

900

## Question 177

### Question

MCQ▾

Square root of 6084 is________.

### Choices

Choice (4)Response

a.

76

b.

78

c.

87

d.

77

## Question 178

### Question

MCQ▾

If = 4, then = ________.

### Choices

Choice (4)Response

a.

123

b.

100

c.

144

d.

169

## Question 179

### Question

MCQ▾

The greatest four digit number, which is a perfect square is ________.

### Choices

Choice (4)Response

a.

9801

b.

9805

c.

9901

d.

9900

## Question 180

### Question

MCQ▾

Which of the following is not a perfect square?

### Choices

Choice (4)Response

a.

1638

b.

16384

c.

100489

d.

5329