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      Question

      Find the wrong number in the given number series,

      31, 55, 91, 145, 217, 307
      A 31 Correct Answer Incorrect Answer
      B 307 Correct Answer Incorrect Answer
      C 91 Correct Answer Incorrect Answer
      D 55 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      37 + 9 ├Ч 2 = 55 55 + 9 ├Ч 4 = 91 91 + 9 ├Ч 6 = 145 145 + 9 ├Ч 8 = 217 217 + 9 ├Ч 10 = 307 So, 37 should come in place of 31.

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