Surface Area and Volumes (IMO Mathematics Olympiad (SOF) Class 9): Questions 43  48 of 104
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Question number: 43
» Surface Area and Volumes
Question
If the volumes of two cones are in the ratio 2: 3 and their diameters are in the ratio 3: 7, and then the ratio of their heights is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 44
» Surface Area and Volumes
Question
The length of canvas 1.2 m wide required building a conical tent of height 14 m and also on the floor of floor area, breadth of canvas is ________
Choices
Choice (4)  Response  

a.  665 m 

b.  770 m 

c.  490 m 

d.  860 m 

Question number: 45
» Surface Area and Volumes
Question
If the altitude of an equilateral triangle is, its area is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 46
» Surface Area and Volumes
Question
What change in percent is made in the area of a rectangle by increasing its length byand breadth by?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 47
» Surface Area and Volumes
Question
The base of a prism is a right angle triangle and the two sides containing the right angle are 8 cm and 15 cm. if its height is 20 cm, then the volume of the prism is ________
Choices
Choice (4)  Response  

a.  600 c. cm. 

b.  1200 c. cm. 

c.  300 c. cm. 

d.  160 c. cm. 

Question number: 48
» Surface Area and Volumes
Question
A parallelogram and a trapezoid are equal in area. They also have the same altitudes. If the base of the parallelogram is 14 inches, the sum of the parallel sides of the trapezoid is ________
Choices
Choice (4)  Response  

a.  14 inches 

b.  28 inches 

c.  26 inches 

d.  All of the above 
