CA Foundation · Quantitative Aptitude · Number Series, Coding-Decoding and Odd Man Out
Find the odd one out: ADG, BEH, CFI, DGK
DGK is the odd one out. ADG, BEH and CFI each advance by three letters at every step, while DGK advances three letters from D to G but four letters from G to K, so it does not follow the common pattern.
- AADG
- BBEH
- CCFI
- DDGKCorrect
Explanation
In ADG, BEH and CFI each letter is 3 places after the previous one. In DGK, D to G is 3 but G to K is 4, so DGK breaks the rule.
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