# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 178 - 186 of 1040

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## 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.

## Question number: 183

Edit
MCQ▾

If, then

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 184

Edit
MCQ▾

### Question

The value of is ________.

### Choices

Choice (4) Response

a.

4.00

b.

2.5

c.

7.5

d.

8.5

## Question number: 185

Edit
MCQ▾

### Question

If , then is equal to________.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 186

Edit
MCQ▾

### Question

If, then the value of is________.

### Choices

Choice (4) Response

a.

11.1

b.

24.7

c.

22.7

d.

30.2