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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 Γ— 12 = 25.8 kg Weight of new person = 56 + 25.8 = 81.8 kg

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