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

Find the odd one out: ACE, FHJ, KMO, PRU

PRU is the odd one out. ACE, FHJ and KMO each move forward by two letters at each step, while PRU moves two letters from P to R but three letters from R to U, breaking the uniform gap.

  1. AACE
  2. BFHJ
  3. CKMO
  4. DPRUCorrect

Explanation

In ACE, FHJ and KMO each letter is 2 places after the previous one (A-C-E, F-H-J, K-M-O). In PRU, P to R is 2 but R to U is 3, so the pattern fails.

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