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Math. competition, (Posted on 2012-03-21) Difficulty: 4 of 5
In a mathematical competition, in which 6 problems were posed to the participants, every two of these problems were solved by more than 2/5 of the contestants.
Moreover, no contestant solved all the 6 problems.
Show that there are at least 2 contestants who solved exactly 5 problems each.

source: IMO 2005

No Solution Yet Submitted by Ady TZIDON    
Rating: 3.7500 (4 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
edu | Comment 10 of 103 |
I have joined this math competition but could not grab it. I was actually weak in mathematics in the past while in my recent past I become the expert of math which is paper help legit a good sign for me to again attempt this question for more upgrades of the things that we are actually preparing.
  Posted by Brennan Odom on 2022-05-21 02:03:08
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