If the radius of the sphere is increased by 100%, the volume of the corresponding sphere is increased by-
A
200%
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B
500%
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C
700%
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D
800%
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Solution
The correct option is C700% Initial Volume (V) of sphere =43πr3 If the radius of a sphere increases by 100%, it means the radius is doubled. New volume of sphere is V1. Now V1=43π(2r)3 V1=8V So, volume will be 8 times the original volume. % change in volume =(8V−VV)×100=700% So, option C is correct.