Write Roman numerals CDXLIX in Arabic numerals

Options

A. 569
B. 449
C. 549
D. 469

Answer

To convert the Roman numeral CDXLIX into Arabic numerals, we can break it down into its components and calculate the total value step by step.

### Step-by-Step Solution:

1. **Identify the Roman Numerals:**
- The Roman numeral is CDXLIX.
- We can break it down into three parts: CD, XL, and IX.

2. **Convert Each Part to Arabic Numerals:**
- **CD:**
- C = 100
- D = 500
- Since C is before D, we subtract: 500 - 100 = 400.
- So, CD = 400.

- **XL:**
- X = 10
- L = 50
- Since X is before L, we subtract: 50 - 10 = 40.
- So, XL = 40.

- **IX:**
- I = 1
- X = 10
- Since I is before X, we subtract: 10 - 1 = 9.
- So, IX = 9.

3. **Add the Values Together:**
- Now, we add the values we found:
- CD + XL + IX = 400 + 40 + 9.

4. **Calculate the Total:**
- 400 + 40 = 440.
- 440 + 9 = 449.

5. **Final Result:**
- Therefore, the Arabic numeral for CDXLIX is **449**.

### Summary:
CDXLIX = 400 + 40 + 9 = 449.