CA Foundation · Quantitative Aptitude · Number Series, Coding-Decoding and Odd Man Out
Find the next group in the series: AZ, BY, CX, DW, ?
The next group is EV. In each pair the first letter moves one step forward (A, B, C, D, E) and the second letter moves one step backward (Z, Y, X, W, V), so the fifth pair is E followed by V.
- AEVCorrect
- BEU
- CFV
- DDV
Explanation
The first letters go forward A, B, C, D, E, while the second letters go backward Z, Y, X, W, V. So the next group is EV. EU skips a letter in the backward sequence.
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