Mutually friendly (Posted on 2002-07-01)

	Submitted by levik
Rating: 3.0000 (5 votes)
Solution:	(Hide)
Imagine the six people. Of them, some person X either has at least three friends among the other 5, or at least three strangers. If X has at least three friends, (call them A, B and C), then either the three of them are all mutual strangers (and satisfy the condition), or at least two of them are friends, and then the these two plus X are the three people that satisfy the condition. The above paragraph applies likewise to the case where A, B and C are strangers to X.

	Subject	Author	Date
	Mutual friends	Math Man	2011-04-25 20:08:22
	Solution	K Sengupta	2008-09-05 06:36:10
	re: possible solution?	calla tah-n	2003-05-22 20:59:50
	possible solution?	calla tah-n	2003-05-22 20:53:54
	"Myou-tyou-el"	Tim Axoy	2003-03-21 12:32:03
	Ramsey Theory	Josh Myer	2002-11-15 05:11:33
	re(3): IQ Test	levik	2002-07-02 11:56:51
	re(2): IQ Test	TomM	2002-07-02 08:01:25
	re: IQ Test	levik	2002-07-02 02:11:03
	No Subject	Dulanjana	2002-07-02 00:23:15
	No Subject	TomM	2002-07-01 15:08:34