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    Question

    A 270 ml mixture contains juice and water in a ratio of

    4:5. First, 20% of the mixture is removed and replaced with an equal amount of juice. This process is then repeated once more. What is the final quantity of juice in the mixture?
    A 174 ml Correct Answer Incorrect Answer
    B 140 ml Correct Answer Incorrect Answer
    C 152 ml Correct Answer Incorrect Answer
    D 158 ml Correct Answer Incorrect Answer

    Solution

    Initial quantity of water = (5/9) × 270 = 150 ml

    ATQ, Final quantity of water in the mixture = 150 × 0.8 × 0.8 = 96 ml

    So, the final quantity of juice in the mixture = 270 – 96 = 174 ml

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