Home > Numbers
| Concatenation sum (Posted on 2019-05-15) |
 |
The number 123456789 is concatenated 1729 times to form a number A
Similarly, the number 987654321 is concatenated 1729 times to form another number B
If A+B=C, find the sum of digits of C
Comments: (
You must be logged in to post comments.)
|
|
Please log in:
Forums (0)
Newest Problems
Random Problem
FAQ |
About This Site
Site Statistics
New Comments (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On
Chatterbox:
|
