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    Question

    A milkman mixed equal quantities of two mixtures,

    ‘A’ and ‘B’. In mixture ‘A’, the milk-to-water ratio is 5:2, while in mixture ‘B’, it is 4:1. After mixing both, he added 20 liters of water to the final mixture. If mixture ‘A’ originally contained 35 liters, what is the final ratio of milk to water?
    A 53:37 Correct Answer Incorrect Answer
    B 35:22 Correct Answer Incorrect Answer
    C 46:35 Correct Answer Incorrect Answer
    D 54:35 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Quantity of milk in mixture ‘A’ = 35 × 5/7 = 25 litres

    Quantity of water in mixture ‘A’ = 35 – 25 = 10 litres

    Quantity of milk in mixture ‘B’ = 35 × 4/5 = 28 litres

    Quantity of water in mixture ‘B’ = 35 – 28 = 7 litres

    Quantity of milk in resultant mixture = 25 + 28 = 53 litres

    Quantity of water in resultant mixture = 10 + 7 = 17 litres

    Ratio of milk to water in final mixture = 53:(17 + 20) = 53:37

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