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      Question

      The average of 15 numbers is 40. A new number is added

      and the new average becomes 41. Find the number added.
      A 56 Correct Answer Incorrect Answer
      B 39 Correct Answer Incorrect Answer
      C 47 Correct Answer Incorrect Answer
      D 63 Correct Answer Incorrect Answer

      Solution

      Sum of 15 numbers = 15 × 40 = 600 Sum of 16 numbers = 16 × 41 = 656 Number added = 656 − 600 = 56

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