IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 430  433 of 929
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Question number: 430
Question
A cylinder and a cone have the same height and same radius of the base. The ratio between the volumes of the cylinder and the cone is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 431
Question
The edge of a cube is 20 cm. how many small cubes of 5 cm edge can be formed from this cube?
Choices
Choice (4)  Response  

a.  64  
b.  100  
c.  4  
d.  32 
Question number: 432
Question
A corn cob somewhat like a cone, has the radius of the broadest end as 2.1 cm and length as 20 cm. If each 1 cm ^{2} of the surface of the cob carries an average of 3 grains, find how many grains you would find on the entire cob?
Choices
Choice (4)  Response  

a.  550 grains  
b.  670 grains  
c.  881 grains  
d.  980 grains 
Question number: 433
Question
Points P, Q, R and S divide the sides of rectangle ABCD in the ratio , as shown in the figure. What fraction of area of the rectangle is the area of the parallelogram PQRS?
Choices
Choice (4)  Response  

a.  
b.  
c.  
d. 