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CA Foundation · Quantitative Aptitude · Number Series, Coding-Decoding and Odd Man Out

Find the odd one out: BDF, HJL, NPR, TVX, ZAC

ZAC is the odd one out. In BDF, HJL, NPR and TVX each letter is two places after the previous one. In ZAC the step from Z to A is only one place (wrapping around), so the pattern breaks.

  1. AHJL
  2. BNPR
  3. CTVX
  4. DZACCorrect

Explanation

Check the letters: BDF, HJL, NPR and TVX each have letters 2 places apart in the alphabet in a straight run. ZAC would need to go Z-B-D with wrap-around by +2, but it is Z-A-C, which gives +1 then +2. So ZAC does not follow the rule.

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