Write the given Roman numerals in Indian system of numerals: a. CCXXIX b. CDXLVII

Answer

To convert the given Roman numerals into the Indian system of numerals, we will break down each numeral step by step.

### Part a: CCXXIX

1. **Identify the Roman Numerals**: The Roman numeral is CCXXIX.
2. **Break Down the Roman Numerals**:
- C = 100 (there are two C's, so 100 + 100 = 200)
- X = 10 (there are two X's, so 10 + 10 = 20)
- IX = 9 (I before X means 1 less than 10, which is 9)
3. **Add the Values Together**:
- 200 (from CC) + 20 (from XX) + 9 (from IX) = 229
4. **Final Result**: Therefore, CCXXIX in the Indian numeral system is 229.

### Part b: CDXLVII

1. **Identify the Roman Numerals**: The Roman numeral is CDXLVII.
2. **Break Down the Roman Numerals**:
- CD = 400 (D = 500 and C before D means 100 less than 500)
- XL = 40 (L = 50 and X before L means 10 less than 50)
- VII = 7 (V = 5 and II = 2, so 5 + 2 = 7)
3. **Add the Values Together**:
- 400 (from CD) + 40 (from XL) + 7 (from VII) = 447
4. **Final Result**: Therefore, CDXLVII in the Indian numeral system is 447.

### Summary of Results:
- CCXXIX = 229
- CDXLVII = 447

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