Multiple Choice Questions on A vessel full of pure acid contains 15 liters of it of which 3 liters are withdrawn The vessel is th........... for Mathematics - All Exams Preparation
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Mixture and Alligation

Quantitative Aptitude (CDS)

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    A vessel full of pure acid contains 15 liters of it, of which 3 liters are withdrawn. The vessel is then filled with water. The next 3 liters of the mixture is withdrawn, and again the vessel is filled up with water. The ratio of the acid left in the vessel with that of the original quantity is

    25:12

    Incorrect Answer

    1:12

    Incorrect Answer

    12:25

    Correct Answer

    25:1

    Incorrect Answer
    Explanation:

    Quantity of acid left = 15 × ( 1- 3/ 15 ) ^2
    = 15 × 12/15 × 12/15
    = 48/5
    Required ratio = 48 / 5×20
    = 12 / 25 = 12:25

    By: bhavesh kumar singh
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