Choose the one which does not belong to the group?

RNMQ

The following table shows the position values of the alphabets:

Answer will be RNMQ

RNMQ - 18 14 13 17

GDCF - 7 4 3 6

LIHK - 12 9 8 11

TQPS - 20 17 16 19

The difference between the 4th letter and the 2nd letter is of 2 but in RNMQ the difference is of 3. Thus, it does not belong to the same group as it is following a different pattern.

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