IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 477  483 of 1040
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Question number: 477
Question
A right cylindrical vessel is full with water, how many right cones having same diameter and height as that of right cylinder will be needed to store that water?
Choices
Choice (4)  Response  

a.  5  
b.  3  
c.  2  
d.  4 
Question number: 478
Question
The ratio of radii of two cylinders is 1: and heights are in the ratio 3: 2. The ratio of their volume is________.
Choices
Choice (4)  Response  

a.  3: 4  
b.  2: 3  
c.  1: 4  
d.  1: 2 
Question number: 479
Question
The surface areas of the six faces of a rectangular solid are 6,6, 8,8, 12 and 12 square centimeters. The volume of the solid, in cubic centimeters is________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 480
Question
Surface area of a cube with edge = 2 cm is________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 481
Question
Find the surface area of a cylinder with diameter of base 6 cm and height 40 cm.
Choices
Choice (4)  Response  

a.  1261  
b.  1263  
c.  1262  
d.  1200 
Question number: 482
Question
A square garden measuring 6 m on a side is surrounded by a 1.5 m wide path. What is the area of the path?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 483
Question
A cylindrical tower is 5 meters in diameter and 10 meters height. The cost of white washing its curved surface at 25 paisa per is
Choices
Choice (4)  Response  

a.  40  
b.  24  
c.  37  
d.  39 