Surface Area and Volumes (IMO Mathematics Olympiad (SOF) Class 9): Questions 82  86 of 104
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Question number: 82
» Surface Area and Volumes
Question
A rectangular field has its length and breadth in the ratio. Its area is 10.29 hectares. The cost of fencing it at RS. 8 per meter is ________
Choices
Choice (4)  Response  

a.  Rs. 15400 

b.  Rs. 14200 

c.  Rs. 11200 

d.  Rs. 21500 

Question number: 83
» Surface Area and Volumes
Question
The volume of the largest circular cone that can be cut of a cube whose edge is 16 cm is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 84
» Surface Area and Volumes
Question
From each corner of a square of side 6 cm a quadrant of a circle of radius 2 cm is cut and also a circle of diameter 4 cm is cut as shown in the figure, then the area of the remaining portion of the square is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 85
» Surface Area and Volumes
Question
Volume of a hemisphere is 14564 cubic cm. The total surface area is ________
Choices
Choice (4)  Response  

a.  4525.12 sq. cm 

b.  1215.15 sq. cm 

c.  6545.25 sq. cm 

d.  3432.44 sq. cm 

Question number: 86
» Surface Area and Volumes
Question
A circular park of 60 metre diameter has a circular path just inside the boundary of width 3 metre. The area of path is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

