CA Foundation · Quantitative Aptitude · Number Series, Coding-Decoding and Odd Man Out
Find the missing group in the series: CAT, FDW, IGZ, ?
The missing group is LJC. Every letter shifts three places ahead at each step, so I becomes L, G becomes J, and Z wraps around the alphabet to become C.
- ALJCCorrect
- BLKC
- CKJC
- DLJB
Explanation
Each letter moves forward by 3 in every step. From IGZ: I+3=L, G+3=J, Z+3=C (wrapping around after Z). So the group is LJC. LKC is wrong because G+3 is J, not K.
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