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      Question

      3, 7, 15, 27, 63, 127,

      255 Find the wrong number in the series
      A 7 Correct Answer Incorrect Answer
      B 15 Correct Answer Incorrect Answer
      C 27 Correct Answer Incorrect Answer
      D 63 Correct Answer Incorrect Answer

      Solution

      Go on multiplying the number by 2 and adding 1 to it to get the next number. So, 27 is wrong.

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