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      Question

      What will come in place of the question mark (?) in the following series? 6, 13, 29, 63, ?, 259

      A 131 Correct Answer Incorrect Answer
      B 133 Correct Answer Incorrect Answer
      C 135 Correct Answer Incorrect Answer
      D 129 Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      6 × 2 + 1 = 13 13 × 2 + 3 = 29 29 × 2 + 5 = 63 63 × 2 + 7 = 133 133 × 2 + 9 = 275

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