Four letter sets are given. Three are alike in some way, and one is different. Find the odd one out.

Correct option is D

Sol. Most options follow a consistent pattern in the positioning of letters in the alphabet. Option (d) does not follow the same logic, making it the odd one.
Explanation of each option:
· (a) GKIM – Pattern: +1, +2, +1 → G→K (+4), K→I (–2), I→M (+4) — symmetry in jump
· (b) FJHL – Similar pattern of jumps in letters
· (c) PTRV – P→T (+4), T→R (–2), R→V (+4) – pattern maintained
· (d) CHEJ – No consistent pattern in letter placement, making it the odd one