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    Question

    The salary of a person is increased by Rs. 500. If his old

    salary was 25% less than his new salary, then his old salary was:
    A Rs.2500 Correct Answer Incorrect Answer
    B Rs.1800 Correct Answer Incorrect Answer
    C Rs.1500 Correct Answer Incorrect Answer
    D Rs.2000 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the new salary of the person be Rs. '100x'

    So, old salary of the person = 100x × 0.75 = Rs. '75x'

    So, 100x - 75x = 500

    So, 25x = 500

    So, x = 20

    So, old salary of the person = 20 × 75 = Rs. 1,500

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