Choose the one which does not belong to the group?

KRX

The following table shows the position values of the alphabets:

The answer will be KRX

ELS - 5, 12, 19

HOV - 8, 15, 22

CJQ - 3, 10, 17

KRX - 11, 18, 24

The pattern followed by 1st, 2nd, and 3rd option is same. Whereas the 4th option has a different pattern.

We can also memorize the alphabet so that we do not make any calculation mistakes and also reduce the time to solve answers: