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      Question

      A series is given with one term missing. Choose the

      correct alternatives from the given ones that will complete the series. 5, 11, 26, 65, 146, 317, _____
      A 670 Correct Answer Incorrect Answer
      B 666 Correct Answer Incorrect Answer
      C 645 Correct Answer Incorrect Answer
      D 676 Correct Answer Incorrect Answer

      Solution

      5 X 2 + 1Β² = 10 + 1 = 11 11 X 2 + 2Β² = 22 + 4 = 26 26 X 2 + 3Β² = 56 + 9 = 65 65 X 2 + 4Β² = 130 + 16 = 146 146 X 2 + 5Β² = 292 + 25 = 317 317 X 2 + 6Β² = 634 + 36 = 670

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