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    Question

    In a solution, the quantity of syrup is (x+10) L and

    water is 70 L. If 5 L syrup and 5 L water are added, the ratio of syrup and water becomes 7:5. Find x% of the initial water.
    A 24 liters Correct Answer Incorrect Answer
    B 18 liters Correct Answer Incorrect Answer
    C 31 liters Correct Answer Incorrect Answer
    D 54 liters Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, So, we can say, (x+10+5)/(70+5) = 7/5 Or, (x+15)/75 = 7/5 Or, 5(x+15) = 525 Or, 5x + 75 = 525 Or, 5x = 450 → x = 90 Required value = 70×90/100 = 63 L

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