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      Question

      What is the average of first 25 multiples of

      2.5?
      A 25.3 Correct Answer Incorrect Answer
      B 35.1 Correct Answer Incorrect Answer
      C 23.1 Correct Answer Incorrect Answer
      D 32.5 Correct Answer Incorrect Answer

      Solution

      First term = 2.5 x 1 = 2.5 Last term = 2.5 x 25 = 62.5 Required average = (2.5 + 62.5)/2 = 32.5

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