If the height of a cylinder is increased by 15% and the radius of its base is decreased by 10% then the percentage change in its curved surface area is :

If the height of a cylinder is increased by 15% and the radius of its

1.	If the height of a cylinder is increased by 15% and the radius of its base is decreased by 10% then the percentage change in its curved surface area is :
A.	.5% increased
B.	.5% increased
C.	.5% decreased
D.	.5% decreased
Answer» C. .5% decreased

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If the height of a cylinder is increased by 15% and the radius of its base is decreased by 10% then the percentage change in its curved surface area is :

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