Question

    Harry’s expenditure and savings are in the ratio

    of 9:7. If his income increases by 15% and the expenditure by 22%, then by how much percent does his savings increase?
    A 6% Correct Answer Incorrect Answer
    B 7% Correct Answer Incorrect Answer
    C 8% Correct Answer Incorrect Answer
    D 13% Correct Answer Incorrect Answer

    Solution

    Let the saving increased by x % (15-x)/(22-15) = 9/7 105 - 7x = 63 7x = 42 x = 6%

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