Choose the odd numeral pair in each of the following questions :

Options

A. 45-27
B. 30-18
C. 20-10
D. 15-12

Answer

To solve the problem of choosing the odd numeral pair from the given options, we will analyze each pair to determine their divisibility by 3.

### Step-by-Step Solution:

1. **Identify the Pairs**:
We have the following pairs to analyze:
- Pair 1: (45, 27)
- Pair 2: (30, 18)
- Pair 3: (20, 10)
- Pair 4: (15, 12)

2. **Check Divisibility by 3**:
We will check each number in the pairs to see if they are divisible by 3.

- **Pair 1: (45, 27)**
- 45 ÷ 3 = 15 (divisible)
- 27 ÷ 3 = 9 (divisible)
- Conclusion: Both numbers are divisible by 3.

- **Pair 2: (30, 18)**
- 30 ÷ 3 = 10 (divisible)
- 18 ÷ 3 = 6 (divisible)
- Conclusion: Both numbers are divisible by 3.

- **Pair 3: (20, 10)**
- 20 ÷ 3 = 6.67 (not divisible)
- 10 ÷ 3 = 3.33 (not divisible)
- Conclusion: Neither number is divisible by 3.

- **Pair 4: (15, 12)**
- 15 ÷ 3 = 5 (divisible)
- 12 ÷ 3 = 4 (divisible)
- Conclusion: Both numbers are divisible by 3.

3. **Identify the Odd Pair**:
From our analysis:
- Pair 1, Pair 2, and Pair 4 are divisible by 3.
- Pair 3 (20, 10) is not divisible by 3.

Therefore, the odd numeral pair is **(20, 10)**.

### Final Answer:
The odd numeral pair is **(20, 10)**.