What would be the next group of letters in the following series? AOHV … BPIW … CQJX … DRKY … ?

To determine the next group of letters in the series, let's analyze the pattern step by step:

1. First Letters:

   • A, B, C, D, ?
   • The first letters are in alphabetical order. So, the next letter after D is E.

2. Second Letters:

   • O, P, Q, R, ?
   • The second letters are also in alphabetical order. So, the next letter after R is S.

3. Third Letters:

   • H, I, J, K, ?
   • The third letters are in alphabetical order. So, the next letter after K is L.

4. Fourth Letters:

   • V, W, X, Y, ?
   • The fourth letters are in alphabetical order. So, the next letter after Y is Z.

Combining these, the next group of letters in the series is ESLZ.