IKMC 2027 - Grades 11-12 - Self-study SET 8 - Thematic Batch 3 Question 11

IKMC · IKMC 2027 - Grades 11-12 - Self-study SET 8 - Thematic Batch 3

Question 11

How many positive integers below $10^{10}$ have digit sum 9?

1. 48620
2. 49840
3. 50150
4. 52250
5. 55460