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    Question

    The salary of a worker is first increased by 25%, then

    it is decreased by 12%. The percentage change in his salary is:
    A 10% increase Correct Answer Incorrect Answer
    B 13% increase Correct Answer Incorrect Answer
    C 10% decrease Correct Answer Incorrect Answer
    D 13% decrease Correct Answer Incorrect Answer

    Solution

    Let the original salary be ₹100.
    Increase by 25%: ₹100 + 25% of ₹100 = ₹100 + ₹25 = ₹125
    Decrease by 12%:
    ₹125 − 12% of ₹125 = ₹125 − ₹15 = ₹110

    Final salary = ₹110
    Change = ₹110 − ₹100 = ₹10
    Percentage change = (₹10 / ₹100) × 100 = 10% increase.

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