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					 Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
 s – n x – m n x – m n – s m – x
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                        - m s s x n
- n x y m s
- n m x x n
- s m n x x
 
Correct Option: A
As per given question, we can see that the given letter series is in below pattern.
s  m n x 
After rearranging the letters we will get, 
s m n x / s m n x / s m n x s m n x
 
	