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Railways PYQCBT 2 2017

RRB NTPC · Question 111

Find the missing term of the sequence. AB, BA, ABC, CBA, ABCD, __________

  1. DABC

  2. DCBA

  3. DBCA

  4. DBAC

Show answer & explanation

Answer: (B) DCBA

Explanation

Each group is followed by its reverse: AB, BA; ABC, CBA; ABCD, DCBA.