Question : Direction: In each of the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
a_ _ dba _ _ bcad _ _ da _ _cd
Option 1: aabbccdd
Option 2: bccdbcab
Option 3: abcddcba
Option 4: cbcddcba
Correct Answer: bccdbcab
Solution : Given -
a_ _ dba _ _ bcad _ _ da _ _cd
Let's check the options.
option first: aabbccdd
The series becomes a aa dba bb bcad cc da dd cd
There is no pattern in the above series.
option second: bccdbcab
The series becomes a bc dba cd bcad bc da ab cd
The pattern in the series becomes abcd/bacd/bcad/bcda/abcd.
option third: abcddcba
The series becomes a ab dba cd bcad dc da ba cd
There is no pattern in the above series.
option fourth: cbcddcba
The series becomes a cb dba cd bcad dc da ba cd
There is no pattern in the above series.
Hence, second option is correct.
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