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    Question

    A trader purchased two items, 'X' and 'Y', at the same

    price. He sold item 'X' at a 30% gain and item 'Y' at a 15% loss, and made a total profit of Rs. 90. What would be the selling price of item 'X' if it had been sold at a 20% gain?
    A Rs.720 Correct Answer Incorrect Answer
    B Rs.660 Correct Answer Incorrect Answer
    C Rs.825 Correct Answer Incorrect Answer
    D Rs.770 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let cost price of each item = Rs. 100x
    Selling price of item 'X' = 100x × 1.30 = Rs. 130x
    Selling price of item 'Y' = 100x × 0.85 = Rs. 85x
    According to the question,
    130x + 85x - 2 × 100x = 90
    215x - 200x = 90
    15x = 90
    x = 90 ÷ 15
    x = 6
    So, the selling price of item 'X' at 20% gain = 120 × 6 = Rs. 720

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