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    Question

    The average weight of 5 children decreases by 4 kg when

    one of them weighing 40 kg is replaced by a new child. Find the weight of the new child.
    A 16 kg Correct Answer Incorrect Answer
    B 20 kg Correct Answer Incorrect Answer
    C 18 kg Correct Answer Incorrect Answer
    D 24 kg Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Total weight decreased = (5 x 4) kg = 20 kg Weight of new child = (40 – 20) kg = 20 kg

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