IMO Mathematics Olympiad Class 8: Questions 274  280 of 1029
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Question number: 274
Question
A bag contains 50p, 25p, 10p coins in the ratio 1: 3: 2, amounting to Rs. 87. Find the total number of coins.
Choices
Choice (4)  Response  

a.  100 

b.  400 

c.  200 

d.  360 

Question number: 275
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. 


b. 


c. 


d. 


Question number: 276
» Quadrilaterals and Practical Geometry
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
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
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.  6 

c.  8 

d.  3 

Question number: 279
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
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 
