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      Question

      What is the average of first 21 multiples of

      2.1?
      A 25.3 Correct Answer Incorrect Answer
      B 35.1 Correct Answer Incorrect Answer
      C 23.1 Correct Answer Incorrect Answer
      D 52.8 Correct Answer Incorrect Answer

      Solution

      First term = 2.1 x 1 = 2.1 Last term = 2.1 x 21 = 44.1 Required average = (2.1 + 44.1)/2 = 23.1

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