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

Pick the odd letter group out: BD, FH, JL, NP, QT

QT is the odd one out. In BD, FH, JL and NP the second letter is exactly two positions after the first, but in QT the second letter T is three positions after Q, so it does not follow the pattern.

  1. ABD
  2. BJL
  3. CNP
  4. DQTCorrect

Explanation

In BD, FH, JL and NP the second letter is 2 places after the first (B to D, F to H, J to L, N to P). In QT, Q to T is 3 places. So QT breaks the rule of a gap of 2.

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