Choose the correct order of the given alternative : b _ b _ bb _ _ bbb _ bb _ b
  • 1bbbbba
  • 2bbaaab
  • 3ababab
  • 4aabaab
Answer:- 1
Explanation:-

Solution:
The series is babb/bbab/bbba/bbbb.. Thus, in each sequence, 'a' moves one step forward and 'b' takes its place and finally in the fourth sequence, it is eliminated.

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