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    Question

    The combined average weight of 8 apples and 5 oranges is

    150 grams. If the average weight of the apples is 180 grams, what is the average weight of the oranges?
    A 138 Correct Answer Incorrect Answer
    B 128 Correct Answer Incorrect Answer
    C 122 Correct Answer Incorrect Answer
    D 102 Correct Answer Incorrect Answer
    E 114 Correct Answer Incorrect Answer

    Solution

    Total weight of 8 apples and 5 oranges = 13×150 = 1950 Weight of 8 apples = 8×180 = 1440 Weight of 5 oranges = 1950 – 1440 = 510 Average weight of 5 oranges = 510/5 = 102 grams

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