# If the radius of a right circular cylinder is decreased by 20% while i

| If the radius of a right circular cylinder is decreased by 20% while its height is increased by 40%, then the percentage change in its volume will be:

A. No increase or decrease

B. 1. 04% increase

C. 10. 4% increase

D. 10. 4% decrease

### Right Answer is: D

#### SOLUTION

We know that the Volume of cylinder

A. T. Q.

When the radius of a right circular cylinder is decreased by 20% while its height is increased by 40%

Hence

New Volume

% change in volume

decrease

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If the radius of a right circular cylinder is decreased by 20% while i