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

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If the height of a cylinder is increased by 15 percent and the radius of its base is decreased by 10 percent then by what percent will its curved surface area change ?

Options:

A . 3.5% decrease

B . 3.5% increase

C . 5% decrease

D . 5% increase

Answer: Option B

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