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    Question

    In an alloy of three metals, ratio of the quantity of

    gold, silver and platinum is 5:6:8, respectively. If total quantity of silver and platinum together is 140 kg then find the difference between the quantity of silver and gold.
    A 10 kg Correct Answer Incorrect Answer
    B 15 kg Correct Answer Incorrect Answer
    C 20 kg Correct Answer Incorrect Answer
    D 12 kg Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the quantity of gold, silver and platinum be ‘5x’ kg, ‘6x’ kg and ‘8x’ kg, respectively. Total quantity of silver and platinum together = 140 kg 6x + 8x = 140 Or, x = 10 Difference between the quantity of silver and gold = {(6 – 5) × 10} = 10 kg

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