Three of the following four-letter clusters are alike in a certain way and thus form a group. Which letter cluster does NOT belong to that group?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. TSQ.
Logic: 1st letter - 2 = 2nd letter, 2nd letter - 1 = 3rd letter
All follow the same logic except option 1.