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    Question

    There is 100 litres of mixture of milk and water in a

    jar. The ratio of quantity of milk to water in the jar is 5:3, respectively. If lsquo;xrsquo; litres of mixture is taken out from the jar then the difference between quantity of milk and water left in the jar is 21 litres. Find the value of lsquo;xrsquo;
    A 30 Correct Answer Incorrect Answer
    B 62 Correct Answer Incorrect Answer
    C 16 Correct Answer Incorrect Answer
    D 12 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the quantity of milk and water left in the jar be 5a litres and 3a litres, respectively According to the question, 5a ndash; 3a = 21 =gt; a = 10.5 Therefore, quantity of mixture left in the jar = 5a + 3a = 8a = 84 litres Therefore, quantity of mixture taken out = 100 ndash; 84 = 16 litres =gt; x = 16

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