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      Question

      Find the wrong number in the given number series.

      2, 5, 11, 23, 47, 97
      A 5 Correct Answer Incorrect Answer
      B 47 Correct Answer Incorrect Answer
      C 23 Correct Answer Incorrect Answer
      D 97 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Pattern: each term = (previous term Γ— 2) + 1 2 β†’ 2Γ—2+1 = 5 5 β†’ 5Γ—2+1 = 11 11 β†’ 11Γ—2+1 = 23 23 β†’ 23Γ—2+1 = 47 47 β†’ 47Γ—2+1 = 95 So last term should be 95, not 97. Wrong term = 97

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