# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 173 - 182 of 1040

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## Question number: 173

Edit
True-False▾

### Is the Following Statement True or False?

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

## Question number: 174

Edit
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.

62

c.

60

d.

50

## Question number: 175

Edit
MCQ▾

### Question

If , then the value of is________.

### Choices

Choice (4)Response

a.

3

b.

4

c.

5

d.

2

## Question number: 176

Edit
MCQ▾

### Question

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 number: 177

Edit
MCQ▾

### Question

Square root of 6084 is________.

### Choices

Choice (4)Response

a.

76

b.

78

c.

87

d.

77

## Question number: 178

Edit
MCQ▾

### Question

If = 4, then = ________.

### Choices

Choice (4)Response

a.

123

b.

100

c.

144

d.

169

## Question number: 179

Edit
MCQ▾

### Question

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

### Choices

Choice (4)Response

a.

9801

b.

9805

c.

9901

d.

9900

## Question number: 180

Edit
MCQ▾

### Question

Which of the following is not a perfect square?

### Choices

Choice (4)Response

a.

1638

b.

16384

c.

100489

d.

5329

## Question number: 181

Edit
MCQ▾

### Question

A number is multiplied by itself and then 10 is subtracted from the product. If the final result is 590, then find the original number.

### Choices

Choice (4)Response

a.

60

b.

36

c.

30

d.

50

## Question number: 182

Edit
MCQ▾

### Question

Three numbers are in the ratio of 4: 3: 2. The sum of their cubes is 21384. The numbers are________.

### Choices

Choice (4)Response

a.

b.

6: 12: 18

c.

15: 30: 45

d.

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