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    Question

    The average weight of 12 children rises by 2.15 kg after

    one of the children, who weighs 56 kg, is replaced by a new child. What is the weight of the new child?
    A 95.8 kg Correct Answer Incorrect Answer
    B 78.8 kg Correct Answer Incorrect Answer
    C 81.8 kg Correct Answer Incorrect Answer
    D 68.8 kg Correct Answer Incorrect Answer

    Solution

    ATQ,

    Total weight increased = 2.15 ├Ч 12 = 25.8 kg Weight of new person = 56 + 25.8 = 81.8 kg

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