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    Question

    A trader purchased a gadget and sold it at a profit of 30%.

    If he had sold it at a profit of 18%, his profit would have decreased by Rs.180. What was the cost price of the gadget?
    A Rs.1000 Correct Answer Incorrect Answer
    B Rs.1090 Correct Answer Incorrect Answer
    C Rs.1500 Correct Answer Incorrect Answer
    D Rs.1870 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the cost price of the gadget be Rs.x.

    x × 130/100 – x × 118/100 = 180

    13x/10 – 59x/50 = 180

    (65x – 59x)/50 = 180

    6x = 9000

    x = 1500

    The cost price of the gadget = Rs.1500

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