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    Question

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

    gold, silver and platinum is 5:6:4, respectively. If total quantity of silver and platinum together is 270 kg then find the difference between the quantity of silver and gold.
    A 20 kg Correct Answer Incorrect Answer
    B 24 kg Correct Answer Incorrect Answer
    C 25 kg Correct Answer Incorrect Answer
    D 27 kg Correct Answer Incorrect Answer

    Solution

    Let the quantity of gold, silver and platinum be ‘5x’ kg, ‘6x’ kg and ‘4x’ kg, respectively. Total quantity of silver and platinum together = 270 kg 6x + 4x = 270 Or, x = 27 Difference between the quantity of silver and gold = {(6 – 5) × 27} = 27 kg

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