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    Question

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

    is increased by 35% and he still saves the same amount as before then find percentage increase (approximate) in his monthly expenditure.
    A 43.75% Correct Answer Incorrect Answer
    B 53.35% Correct Answer Incorrect Answer
    C 44.95% Correct Answer Incorrect Answer
    D 70.35% Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let monthly of person is Rs. 100x Monthly savings = 0.20 times; 100x = Rs. 20x Monthly expenditure = 100x ndash; 20x = Rs. 80x His increased monthly income = 1.35 times; 100x = Rs. 135x His monthly expenditure now = 135x ndash; 20x = 115x Percentage increase in expenditure = [(115x ndash; 80x)/80x] times; 100 ~ 43.75%

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