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    Question

    The volume of a cube is reduced to 72.9%. By how much is

    the side of the cube reduced?
    A 10% Correct Answer Incorrect Answer
    B 9.5% Correct Answer Incorrect Answer
    C 8.5% Correct Answer Incorrect Answer
    D 9% Correct Answer Incorrect Answer

    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 ┬а 729 = (reduced side)3 ┬а reduced side=9 Change inside = 1/10├Ч100 =10%

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