Question:Two cylindrical buckets have their diameters in the ratio 3 : 1 and their heights are as 1 : 3.Their volumes are in the ratio of : 

A 1 : 2 
B 2 : 3 
C 3 : 1 
D 3 : 4 

+ Answer
C 

+ Explanation
Let their diameters be 3R and R and heights be H and 3H. Then.

Ratio of their volumes` = (pi xx (3R)^2 xx H)/(pi xx R^2 xx (3H))`

                              `= 3/1`

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Irin Moni

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