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If the radius of a sphere is increased by 100%, by what per cent does its volume increase?

Correct Answer: 700%

Explanation:

Here, n = 100%
According to the formula
Percentage increase in volume = [(1 + n/100)3 - 1] x 100%
= [(1 + 100/100)3 - 1] x 100%
= [8 - 1] x 100% = 700%


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