Find the group that is different from the other three: VWUX, SURT, BDAC, PROQ
Find the group that is different from the other three: VWUX, SURT, BDAC, PROQ
In SURT, BDAC and PROQ, both the (1st,3rd) letter pair and the (2nd,4th) letter pair move in the SAME direction by one alphabet step (both decrease by 1). In VWUX, the pair V-U decreases by 1 but the pair W-X increases by 1 - the two pairs move in opposite directions, breaking the pattern. So VWUX is the odd one out.
Re-check your working by substituting the answer back into the original question.