Math Olympiad, I.S.I. Entrance and College Mathematics › Forums › Math Olympiad, I.S.I., C.M.I. Entrance › Combinatorics › combinatorics
Nine mathematicians meets at in an conference and discover that among any three of them, at least two speak a common languange . if a person can speak atmost 3 language prove that there are atleast 3 of them who can speak in same language
You must be logged in to reply to this topic.
