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    Question

    The height of a triangle is increased by 40%. What can

    be maximum percentage increase in the length of the base so that the increase in the area is restricted to a maximum of 82%.
    A 22% Correct Answer Incorrect Answer
    B 30% Correct Answer Incorrect Answer
    C 15% Correct Answer Incorrect Answer
    D 28% Correct Answer Incorrect Answer

    Solution

    Let the base be x. Required percent = x + y + xy/100 82 = x + 40 + 40x/100 42 = 140x/100 x = 30%

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