2. Solved Papers
  3. Railways

Railways R.R.C. (Allahabad) Solved Paper 2nd Shift Held on 1-12-2013

  • question_answer
    15, 31, 63, 127, 255, ? Find out '?'.

    A) 513                              

    B) 511

    C) 523                              

    D) 517

    Correct Answer: B

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