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      Question

      The average score of 30 boys in a group test is recorded

      as 35. However, it was later discovered that two scores of 30 were mistakenly recorded as 40, and one score of 29 was incorrectly noted as 21. What is the correct average score of the group?
      A 38.7 Correct Answer Incorrect Answer
      B 34.6 Correct Answer Incorrect Answer
      C 39.3 Correct Answer Incorrect Answer
      D 40.2 Correct Answer Incorrect Answer

      Solution

      The correct answer is B

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