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    Question

    The length and breadth of a rectangle are increased by

    10% and 20% respectively. The increase in the area of the resulting rectangle will be:
    A 62.5% Correct Answer Incorrect Answer
    B 38% Correct Answer Incorrect Answer
    C 32% Correct Answer Incorrect Answer
    D 68.75% Correct Answer Incorrect Answer

    Solution

    Since, Net change = [a + b + (ab/100)]% Net Effect on area of rectangle = [10 + 20 + {(10 x 20)/100}] % = 32%

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