SSC CHSL 2020 · PYQ · Missing Letter Series · medium
Select the combination of letters that when sequentially placed from left to right in the blanks of the given letter series will complete the series.
_ _ bc _ daabc _ _ a _ _ ccd
A.acccdcb
B.accdaac
C.cacdcab✓ Correct
D.aaccdab
Explanation
Filling in the blanks with 'cacdcab': the series becomes caabcadaabcacaabccd, which reveals a repeating pattern of 'aabc' and 'daabca'. The answer key confirms (a) cacdcab.
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