What is the 489th digit in the number 123456789101112...?

Question

What is the 489th digit in the number 123456789101112...?

1. A. 0
2. B. 3
3. C. 6
4. D. 9 (Correct answer)

Correct Answer

Option D — 9

Detailed Solution & Explanation

The correct answer is 9.

Key Points

• Digits 1-9: 9 digits.
• Digits 10-99: 90×2=180 digits (total 189).
• Digits 100-999: 3 digits each.
• 489−189=300 digits into 3-digit numbers.
• 300/3=100 numbers after 99, so the 100th number = 199.
• The 489th digit is the last digit of 199, which is 9. Answer: 9.