Choose the number pair/group which is different from others.

Options

A. `34-12`
B. `43-30`
C. `52-21`
D. `62-19`

Explanation

To solve the problem of identifying the number pair/group that is different from the others, we will analyze each option based on the sum of the digits of the numbers in each pair. Here’s a step-by-step solution:

### Step 1: Analyze Each Option
We will calculate the sum of the digits for each pair and then find the difference between these sums.

1. **Option 1: (A, B)**
- Let’s assume the pair is (3, 5).
- Sum of digits: 3 + 5 = 8.

2. **Option 2: (C, D)**
- Let’s assume the pair is (4, 6).
- Sum of digits: 4 + 6 = 10.

3. **Option 3: (E, F)**
- Let’s assume the pair is (5, 2).
- Sum of digits: 5 + 2 = 7.

4. **Option 4: (G, H)**
- Let’s assume the pair is (6, 2).
- Sum of digits: 6 + 2 = 8.

### Step 2: Calculate Differences
Now, we will check the differences between the sums of the digits of the pairs.

1. **Difference for Option 1 and Option 2:**
- Difference = 10 - 8 = 2.

2. **Difference for Option 2 and Option 3:**
- Difference = 10 - 7 = 3.

3. **Difference for Option 3 and Option 4:**
- Difference = 8 - 7 = 1.

### Step 3: Identify the Odd One Out
Now, we will check the differences calculated above:

- The differences for options 1, 2, and 3 are consistent, but the difference for option 4 does not match the others.

### Conclusion
Based on the analysis, the odd one out is **Option 4**.