Home > Just Math
| Getting The Minimum With SOD (Posted on 2008-12-02) |
 |
Determine the minimum value of a positive decimal integer m such that:
SOD(m) = 100, and: SOD(2m) = 110
where, SOD(x) denotes the sum of the digits of x.
Note: Try to derive a non computer-assisted method, although computer program/spreadsheet solutions are welcome.
|
|
Submitted by K Sengupta
|
|
Rating: 4.5000 (2 votes)
|
|
|
Solution:
|
(Hide)
|
The required minimum value of m is 2,449,999,999,999.
For an explanation, refer to the solution submitted by Brian Smith in this location.
|
Comments: (
You must be logged in to post comments.)
| |
Subject |
Author |
Date |
 | Solution | Dej Mar | 2008-12-02 21:22:04 |
| Solution | Brian Smith | 2008-12-02 15:31:43 |
|
|
Please log in:
Forums (0)
Newest Problems
Random Problem
FAQ |
About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On
Chatterbox:
|
