Question
The volume of a cube is reduced to 72.9%. By how much is
the side of the cube reduced?Solution
Given: let the side be 10 so, the volume of cube = 103= 1000 now, volume reduced to 72.9% reduced volume of cube = (reduced side)3  729 = (reduced side)3  reduced side=9 Change inside = 1/10×100 =10%
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