In each of the following questions, a group of three numbers/symbols is given in each option. Identify the group that does NOT follow the same pattern as the others.

The correct option is F6 : H8 : J11.

Let us analyze the pattern followed by the given groups of letter-number pairs by looking at the alphabetical position of each letter and its corresponding number.

In each valid pair, the number represents the 1-based position of the letter in the English alphabet (A = 1, B = 2, C = 3, D = 4, E = 5, F = 6, G = 7, H = 8, I = 9, J = 10, etc.). Furthermore, between consecutive elements in a group, the position advances by 2 steps.

Option 1: C3 : E5 : G7
- C is the 3rd letter → C3
- E is the 5th letter (3 + 2 = 5) → E5
- G is the 7th letter (5 + 2 = 7) → G7
This group follows the pattern (+2 at each step, matching letter positions).

Option 2: D4 : F6 : H8
- D is the 4th letter → D4
- F is the 6th letter (4 + 2 = 6) → F6
- H is the 8th letter (6 + 2 = 8) → H8
This group follows the pattern (+2 at each step, matching letter positions).

Option 3: E5 : G7 : I9
- E is the 5th letter → E5
- G is the 7th letter (5 + 2 = 7) → G7
- I is the 9th letter (7 + 2 = 9) → I9
This group follows the pattern (+2 at each step, matching letter positions).

Option 4: F6 : H8 : J11
- F is the 6th letter → F6
- H is the 8th letter (6 + 2 = 8) → H8
- J is the 10th letter of the alphabet, but the given pair is J11 instead of J10 (8 + 2 = 10, not 11).
Therefore, this group does NOT follow the same pattern as the others.