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      Question

      What will come in place of question mark (?) in the

      following series 13, 27, 56, 115 ?               
      A 230 Correct Answer Incorrect Answer
      B 232 Correct Answer Incorrect Answer
      C 233 Correct Answer Incorrect Answer
      D 234 Correct Answer Incorrect Answer

      Solution

      13  × 2 +1 = 27 , 27  × 2+2= 56 , 56 ×  2+3 = 115 , 115  × 2 +4 = 234

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