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KoeN · 17 Feb 2007, 16:16

OK:

if you have 11 coins that are head up, then pick 11 random coins from the big pile of 51.

for example: let's say 2 out of 11 are head up. this means 9 head up coins are still left on the big pile.

turn around all coins of the 11 you picked, and you automatically have 2 groups of 9 coins on both piles.

easy eh?

edit: well done phil!

17 Feb 2007, 16:16	#13
KoeN Lucky Join Date: Jul 2003 Location: - Posts: 3,830	Re: a (simple, but fun) riddle OK: if you have 11 coins that are head up, then pick 11 random coins from the big pile of 51. for example: let's say 2 out of 11 are head up. this means 9 head up coins are still left on the big pile. turn around all coins of the 11 you picked, and you automatically have 2 groups of 9 coins on both piles. easy eh? edit: well done phil! __________________ winning 1-x's CL prediction league this yeaar aaiiiiiiii ^_^ Last edited by KoeN; 17 Feb 2007 at 16:21.