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

Find the next term in the letter series: B, E, H, K, N, ?

The next letter is Q. The series moves forward by three letters each time: B, E, H, K, N correspond to 2, 5, 8, 11, 14, so the next position is 17, which is the letter Q.

  1. AO
  2. BP
  3. CQCorrect
  4. DR

Explanation

Each letter is 3 positions after the previous one: B(2), E(5), H(8), K(11), N(14). The next is 14+3 = 17, which is Q. P would result from a step of only 2.

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