Medium
Three of the following four letter groups are alike in a certain way and one is different. Find the different one: PSRQ, CGEF, JMLK, VYXW
Explanation
Explanation
Convert letters to their alphabet positions. PSRQ (16,19,18,17), JMLK (10,13,12,11) and VYXW (22,25,24,23) all follow the same pattern: +3, then -1, then -1. CGEF (3,7,5,6) follows +4, -2, +1, which is a different pattern, so CGEF is the odd one out.
PRO TIP
Re-check your working by substituting the answer back into the original question.