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A table 4 4 (Posted on 2017-02-05) Difficulty: 2 of 5
At a certain convention participate 100 persons. It is known that each participant personally knows (and is known by) at least 67 others.

A certain lady would like to dine with other 3 at the same table, provided they know her and they know each other.

Prove that this is possible.

Advise how actually she can arrange it.

No Solution Yet Submitted by Ady TZIDON    
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  Subject Author Date
SolutionSolution (spoiler)Steve Herman2017-03-18 13:19:11
Hints/TipsHINT.............please complete the solutionAdy TZIDON2017-03-18 11:32:23
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