# IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 277 - 283 of 1040

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## Question number: 277

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MCQ▾

### Question

A book was sold for Rs. 25.50 with a profit of 10%. If it were sold for Rs. 25.75, then what would have been the percentage of profit or loss?

### Choices

Choice (4) Response

a.

Loss, 10%

b.

Loss, 12%

c.

Profit, 11.04%

d.

profit, 11%

## Question number: 278

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MCQ▾

### Question

The number of sides of a regular polygon whose each exterior angle has a measure of is________.

### Choices

Choice (4) Response

a.

10

b.

8

c.

6

d.

3

## Question number: 279

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MCQ▾

### Question

Sugar is bought at Rs. 15.00 per kg and sold at Rs. 14.00 per kg. The loss percent is________.

### Choices

Choice (4) Response

a.

3.00%

b.

3.12%

c.

6.66%

d.

6.00%

## Question number: 280

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MCQ▾

### Question

Four angles of a quadrilateral are in the ratio 4: 8: 16: 32. The greatest angle is________.

### Choices

Choice (4) Response

a.

144

b.

120

c.

150

d.

192

## Question number: 281

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MCQ▾

### Question

The exterior angle of a regular polygon is one-half of its interior angle. How many sides has the polygon?

### Choices

Choice (4) Response

a.

5

b.

6

c.

8

d.

4

## Question number: 282

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MCQ▾

### Question

Sum of the exterior angle of quadrilateral is________.

### Choices

Choice (4) Response

a.

360

b.

120

c.

450

d.

180

## Question number: 283

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MCQ▾

### Question

The simple interest at y % for y years will be Rs. y on a sum of________.

### Choices

Choice (4) Response

a.

Rs.

b.

Rs.

c.

Rs.

d.

Rs.