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      Question

      5, 15, 30, 135, 405, 1215,

      3645 Find the wrong number in the series
      A 3645 Correct Answer Incorrect Answer
      B 1215 Correct Answer Incorrect Answer
      C 405 Correct Answer Incorrect Answer
      D 30 Correct Answer Incorrect Answer

      Solution

      Multiply each term by 3 to obtain the next term. Hence, 30 is a wrong number.

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