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    Question

    The cost price of an item is Rs. (12n + 240). It is marked

    50% above the cost price and sold after giving a discount of Rs. (4n + 80). If the profit earned is Rs. 1,600, then what is the value of 'n'?
    A 780 Correct Answer Incorrect Answer
    B 660 Correct Answer Incorrect Answer
    C 900 Correct Answer Incorrect Answer
    D 885 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Marked price = 1.5 × (12n + 240) = Rs. (18n + 360)

    Selling price = (18n + 360) - (4n + 80) = Rs. (14n + 280)

    Profit = (14n + 280) - (12n + 240) = Rs. (2n + 40)

    So, 2n + 40 = 1,600

    Or, 2n = 1,560

    Or, n = 780

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