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    Question

    Zara purchased a microwave for Rs. 2400 and spent some

    amount on service. She marked it up by 25%, gave a Rs. 360 discount, and earned a 15% profit. Find the service charge.
    A Rs 1000 Correct Answer Incorrect Answer
    B Rs 800 Correct Answer Incorrect Answer
    C Rs 1200 Correct Answer Incorrect Answer
    D Rs 600 Correct Answer Incorrect Answer

    Solution

    Let service charge = Rs. x
    Effective cost = 2400 + x
    Marked Price = 1.25(2400 + x)
    Selling Price = Marked – 360 = 1.15(2400 + x)
    1.25(2400 + x) – 1.15(2400 + x) = 360
    0.10(2400 + x) = 360
    2400 + x = 3600
    x = Rs. 1200

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