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    Question

    The cost price, selling price and marked price of a watch

    are in the ratio 4:6:10. If the gain on the sale is Rs. 400, what is the discount provided?
    A Rs.500 Correct Answer Incorrect Answer
    B Rs.100 Correct Answer Incorrect Answer
    C Rs.800 Correct Answer Incorrect Answer
    D Rs.750 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the cost price, selling price and marked price be Rs. 4x, Rs. 6x and Rs. 10x respectively

    According to the question,

    Profit earned = 6x – 4x = Rs. 2x

    Therefore, 2x = 400

    Or, x = 200

    Therefore, discount offered = 10x – 6x = 4x = 4 × 200 = Rs. 800

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