2006 Canadian MO Problems/Problem 3
Problem
In a rectangular array of nonnegative real numbers with 
rows andn 
columns, if and only if a row and a column intersect in a positive element, then the sums of their elements are the same. Prove that 
.
Solution
This problem needs a solution. If you have a solution for it, please help us out by adding it.
See also
| 2006 Canadian MO (Problems) | ||
| Preceded by Problem 2 |
1 • 2 • 3 • 4 • 5 | Followed by Problem 4 |
