2nd Brazilian Mathematical Olympiad Problems 1980

Posted in Posted by Unknown on Thursday, September 23, 2010 at 1:01 AM
2nd Brazilian Mathematical Olympiad Problems 19801.  Box A contains black balls and box B contains white balls. Take a certain number of balls from A and place them in B. Then take the same number of balls from B and place them in A. Is the number of white balls in A then greater, equal to, or less than the number of black balls in B?
Subscribe to: Post Comments (Atom)