In each of these question, four groups of letters are given. Three of them are alike in a certain way while one is different select the one which is different.

Options

A. HJN
B. JLP
C. PRU
D. QSW

Explanation

To solve the problem of identifying the group of letters that is different from the others, we will analyze each option step by step.

### Step 1: Analyze Option A - H, J, N
- From H to J:
- H (8) to J (10) = +2
- From J to N:
- J (10) to N (14) = +4
- **Pattern**: +2, +4

### Step 2: Analyze Option B - J, L, P
- From J to L:
- J (10) to L (12) = +2
- From L to P:
- L (12) to P (16) = +4
- **Pattern**: +2, +4

### Step 3: Analyze Option C - P, R, U
- From P to R:
- P (16) to R (18) = +2
- From R to U:
- R (18) to U (21) = +3
- **Pattern**: +2, +3

### Step 4: Analyze Option D - Q, S, W
- From Q to S:
- Q (17) to S (19) = +2
- From S to W:
- S (19) to W (23) = +4
- **Pattern**: +2, +4

### Conclusion:
- Options A, B, and D all follow the same pattern of +2, +4.
- Option C is different as it follows the pattern of +2, +3.

Thus, the group of letters that is different is **Option C - P, R, U**.