If both radius of the base and the height of a right circular cone are increased by 20%, its volume will be increased by :

If both radius of the base and the height of a right circular cone

1.	If both radius of the base and the height of a right circular cone are increased by 20%, its volume will be increased by :
A.	50.7%
B.	72.8%
C.	66.3%
D.	none of these
Answer» C. 66.3%

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If both radius of the base and the height of a right circular cone are increased by 20%, its volume will be increased by :

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