If the radius of a right circular cone is decreased by 20% and its height is increased by 60%, then its volume:

If the radius of a right circular cone is decreased by 20% and its hei

1.	If the radius of a right circular cone is decreased by 20% and its height is increased by 60%, then its volume:
A.	increases by 2.4%
B.	increases by 4.2%
C.	decreases by 2.5%
D.	decreases by 4%
Answer» B. increases by 4.2%

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If the radius of a right circular cone is decreased by 20% and its height is increased by 60%, then its volume:

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