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    Question

    A person saves 20% of his monthly income. If his monthly

    is increased by 54% and he still saves the same amount as before then find percentage increase (approximate) in his monthly expenditure.
    A 64.3% Correct Answer Incorrect Answer
    B 53.3% Correct Answer Incorrect Answer
    C 67.5% Correct Answer Incorrect Answer
    D 70.3% Correct Answer Incorrect Answer

    Solution

    Let monthly of person is Rs. 100x Monthly savings = 0.20 ├Ч 100x = Rs. 20x Monthly expenditure = 100x тАУ 20x = Rs. 80x His increased monthly income = 1.54 ├Ч 100x = Rs. 154x His monthly expenditure now = 154x тАУ 20x = 134x Percentage increase in expenditure = [(134x тАУ 80x)/80x] ├Ч 100 ~ 67.5%

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