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      Question

      The average weight of 17 girls is 20 kg and that of 23

      boys is 22 kg. Find the average weight of the class?
      A 21.15 kg Correct Answer Incorrect Answer
      B 21.15 g Correct Answer Incorrect Answer
      C 20.15 kg Correct Answer Incorrect Answer
      D 20 kg Correct Answer Incorrect Answer

      Solution

      The correct answer is A

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