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    Question

    There is 200 litres of mixture of milk and water in a

    jar. The ratio of quantity of milk to water in the jar is 7:5, 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 23 litres. Find the value of lsquo;xrsquo;
    A 30 Correct Answer Incorrect Answer
    B 62 Correct Answer Incorrect Answer
    C 40 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 7a litres and 5a litres, respectively According to the question, 7a ndash; 5a = 23 =gt; a = 11.5 Therefore, quantity of mixture left in the jar = 7a + 5a = 12a = 138 litres Therefore, quantity of mixture taken out = 200 ndash; 138 = 62 litres =gt; x = 62

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