IMO Mathematics Olympiad (SOF) Class 8: Questions 277  284 of 1030
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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 

Question number: 281
» Quadrilaterals and Practical Geometry
Question
The exterior angle of a regular polygon is onehalf of its interior angle. How many sides has the polygon?
Choices
Choice (4)  Response  

a.  5 

b.  8 

c.  4 

d.  6 

Question number: 282
» Quadrilaterals and Practical Geometry
Question
Sum of the exterior angle of quadrilateral is________.
Choices
Choice (4)  Response  

a.  120 

b.  450 

c.  360 

d.  180 

Question number: 283
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. 

Question number: 284
Question
The simple interest at a % for a years will be Rs. 2a on a sum of________.
Choices
Choice (4)  Response  

a.  Rs. 

b.  Rs. 

c.  Rs. 

d.  Rs. 
