IMO- Mathematics Olympiad Class 8: Questions 275 - 281 of 1029

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Question number: 275

» Comparing Quantities

MCQ▾

Question

When the price of a product was decreased by 10%, the number sold increased by 40%, what was the increase on the total revenue?

Choices

Choice (4) Response

a.

28%

b.

25%

c.

26%

d.

20%

Question number: 276

» Quadrilaterals and Practical Geometry

MCQ▾

Question

Four angles of a quadrilateral are in the ratio 2: 4: 6: 8. The greatest angle is________.

Choices

Choice (4) Response

a.

144 °

b.

110 °

c.

120 °

d.

150 °

Question number: 277

» Comparing Quantities

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.

profit, 11%

b.

Profit, 11.04%

c.

Loss, 12%

d.

Loss, 10%

Question number: 278

» Quadrilaterals and Practical Geometry

MCQ▾

Question

The number of sides of a regular polygon whose each exterior angle has a measure of 36° is________.

Choices

Choice (4) Response

a.

10

b.

6

c.

8

d.

3

Question number: 279

» Comparing Quantities

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

» Quadrilaterals and Practical Geometry

MCQ▾

Question

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

Choices

Choice (4) Response

a.

150 °

b.

144 °

c.

192 °

d.

120 °

Question number: 281

» Quadrilaterals and Practical Geometry

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.

8

c.

4

d.

6

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