Difference between revisions of "2006 Canadian MO Problems/Problem 3"

m (Solution: +)
m (See also: ................................................ need to learn to count)
Line 7: Line 7:
 
*[[2006 Canadian MO]]
 
*[[2006 Canadian MO]]
  
{{CanadaMO box|year=2006|num-b=1|num-a=2}}
+
{{CanadaMO box|year=2006|num-b=2|num-a=4}}

Revision as of 18:57, 7 February 2007

Problem

In a rectangular array of nonnegative real numbers with $m$ rows andn $n$ columns, each row and each column intersect in a positive element, then the sums of their elements are the same. Prove that $m=n$.

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