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    Question

    A person spends 60% of his income. His income increases

    by 20% and his expenditure increases by 10%. If his new saving becomes Rs. 8100, then what was his original income?
    A Rs.16250 Correct Answer Incorrect Answer
    B Rs.15000 Correct Answer Incorrect Answer
    C Rs.20150 Correct Answer Incorrect Answer
    D Rs.13200 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let original income = x Original expenditure = 60% of x = 0.6x Original saving = 0.4x New income = 1.2x New expenditure = 110% of 0.6x = 0.66x New saving = 1.2x - 0.66x = 0.54x Given, 0.54x = 8100 x = 8100 / 0.54 = 15000 Hence, the correct answer is Rs. 15000.

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