New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    If the length, breadth and height of a box of cuboid

    shape is increased by 10%, 25% and 40% respectively, then what would be the percentage change in the volume of the box?
    A 92.5% Correct Answer Incorrect Answer
    B 95.5% Correct Answer Incorrect Answer
    C 90.2% Correct Answer Incorrect Answer
    D 85.7% Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Percentage change of length and breadth = 10 + 25 + `(10 xx 25)/(100)`  = 35 + 2.5 = 37.5% Percentage change of breadth and height =  40 + 37.5 + `(40 xx 37.5)/(100)`  = 77.5 + 15 = 92.5%

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