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    Question

    The cost price ratio of the item

    'watch' to the item 'ring' is 3:2, while the cost price ratio of the item 'ring' to the item 'keychain' is 5:2. If the total cost price of the 'watch' and 'keychain' combined is Rs. 760, calculate the selling price of the 'ring' when it is sold at a 50% profit.
    A 550 Correct Answer Incorrect Answer
    B 650 Correct Answer Incorrect Answer
    C 600 Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let the cost price of item 'watch' and item 'ring' be Rs. '3x' and Rs. '2x', respectively Therefore, cost price of item 'keychain' = 2x × (2/5) = Rs. '0.8x' ATQ, 3x + 0.8x = 760 Or, 3.8x = 760 Or, 'x' = (760/3.8) = 200 Therefore, required selling price = 1.5 × 2x = Rs. '3x' = 3 × 200 = Rs. 600

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