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    Question

    A container can hold 1,000 liters of liquid. If it is

    filled with 30% water and 70% oil, how many liters of oil are in the container? If 50 liters of oil is drained from the container, what percentage of the remaining liquid is oil?
    A 68.4% Correct Answer Incorrect Answer
    B 70% Correct Answer Incorrect Answer
    C 75.8% Correct Answer Incorrect Answer
    D 80% Correct Answer Incorrect Answer

    Solution

    Oil in the container = 70% of 1000 = 700 liters. Remaining oil after draining = 700 - 50 = 650 liters. Remaining liquid = 1000 - 50 = 950 liters. Percentage of oil in remaining liquid = (650 / 950) * 100  ~ 68.4%.

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