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    Question

    A 20 L solution contains 30% sugar. How much water

    should be added to make the sugar 20% of the new solution?
    A 18 L Correct Answer Incorrect Answer
    B 12 L Correct Answer Incorrect Answer
    C 10 L Correct Answer Incorrect Answer
    D 24 L Correct Answer Incorrect Answer

    Solution

    ATQ, Sugar in 20 L = 30% of 20 = 6 L After adding water, sugar remains 6 L. Let new volume = V. Given 6 is 20% of V: 6 = 0.20*V => V = 6/0.20 = 30 L Water added = 30 - 20 = 10 L

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