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    Question

    40 liters of milk are kept in a container. 4 liters were

    removed and replaced with water. This procedure was performed two more times. How much milk does the container now hold?
    A 29.16 Correct Answer Incorrect Answer
    B 22.5 Correct Answer Incorrect Answer
    C 32.2 Correct Answer Incorrect Answer
    D 36.6 Correct Answer Incorrect Answer

    Solution

    we know .   remaining milk in the container = Original amount × [1- amount taken out /original amount] ⁿ = 40[1-4/40] ³ =40[9/10] ³ =40 × 729 /1000 =29.16 liters

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