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    Question

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

    D, and E is 62 kg. If another person K joins the group then the average weight of the group is decreased by 5.5 kg, then find the weight of K.
    A 20 kg Correct Answer Incorrect Answer
    B 27 kg Correct Answer Incorrect Answer
    C 26 kg Correct Answer Incorrect Answer
    D 29 kg Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Total weight of A, B, C, D, and E together = 62 × 5.5 = 310 kg Weight of K = 56.5 × 6 – 310 = 339 – 310 = 29 kg

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