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    Question

    The average weight of a group of five persons, A, B, C,

    D, and E is 67 kg. If another person K joins the group then the average weight of the group is decreased by 3.5 kg, then find the weight of K.
    A 40 kg Correct Answer Incorrect Answer
    B 41 kg Correct Answer Incorrect Answer
    C 46 kg Correct Answer Incorrect Answer
    D 47 kg Correct Answer Incorrect Answer

    Solution

    Total weight of A, B, C, D, and E together = 67 ร— 5 = 335 kg Weight of K = 63.5 ร— 6 โ€“ 335 = 381 โ€“ 335 = 46 kg

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