Question

    A gift box has 10 bangles. The average weight of the

    first 4 bangles is 57gms and the average weight of the remaining 6 bangles is 58 gms. Tell the average weight of all bangles | (in grams)
    A 57.4 Correct Answer Incorrect Answer
    B 57.2 Correct Answer Incorrect Answer
    C 57.6 Correct Answer Incorrect Answer
    D 57.8 Correct Answer Incorrect Answer

    Solution

    Average weight of the first 4 bangles = 57 gm Sum of weight of the first 4 bangles = 57 x 4 = 228 gms Average weight of the last 6 bangles = 58 gm Sum of weight of the last 6 bangles = 58 x 6 = 348 gms Total weight of the 10 bangles = 228 + 348 = 576   Average weight of the 10 bangles = 576/10 = 57.6

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