`{:(A,B,C,D,E,F,G,H,I,J,K,L,M),(1,2,3,4,5,6,7,8,9,10,11,12,13),(N,O,P,Q,R,S,T,U,V,W,X,Y,Z),(14,15,16,17,18,19,20,21,22,23,24,25,26):}`
In each of the following questions, choose the number - letter group which is different from the others.

Options

A. RV3
B. DG2
C. EK5
D. JR6

Answer

To solve the problem, we need to analyze the given groups of letters and numbers to identify which one does not follow the same pattern as the others.

### Step-by-Step Solution:

1. **Identify the Groups**: We have four groups:
- Group A: (R, V, 3)
- Group B: (D, G, 2)
- Group C: (E, K, 5)
- Group D: (J, J, 6)

2. **Determine the Position of Letters**:
- For Group A:
- R = 18 (Position in alphabet)
- V = 22
- For Group B:
- D = 4
- G = 7
- For Group C:
- E = 5
- K = 11
- For Group D:
- J = 10
- J = 10 (same letter)

3. **Check the Pattern**: We need to check if the sum of the first letter's position and the third number equals the second letter's position plus 1.
- **Group A**:
- 18 (R) + 3 = 21
- 21 + 1 = 22 (V) → This matches.
- **Group B**:
- 4 (D) + 2 = 6
- 6 + 1 = 7 (G) → This matches.
- **Group C**:
- 5 (E) + 5 = 10
- 10 + 1 = 11 (K) → This matches.
- **Group D**:
- 10 (J) + 6 = 16
- 16 + 1 = 17 (not equal to 10) → This does not match.

4. **Conclusion**: Since Group D does not follow the same pattern as the others, it is the different one.

### Final Answer:
Group D (J, J, 6) is the group that is different from the others.