2015 · Q118
Which one of the following series of letters follows a pattern and is different from the rest?
general-mental-abilitynumber-alphabet-series
- AADHMSZ
- BBEJNQX
- CDGKPUY
- DCFIOSZ
Explanation
ADHMSZ advances by +3, +4, +5, +6, +7, a regular increasing-step pattern. None of the other three series follows this pattern: BEJNQX, DGKPUY and CFIOSZ have irregular steps. Hence ADHMSZ is the series that follows a pattern and is different from the rest.