4nomore.net » puzzle http://4nomore.net Musings of a memeplex - a mixture of thoughts, books, ... Thu, 17 Jun 2010 13:33:09 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 5 Plus 5 Plus 5 http://4nomore.net/2006/04/5plus5plus5/ http://4nomore.net/2006/04/5plus5plus5/#comments Thu, 20 Apr 2006 00:00:00 +0000 admin http://4nomore.net/wordpress/2006/04/5plus5plus5/ Here a cute little puzzle: look at this equation

and make it correct by only adding one straight stroke (and it must stay an equation :-) .
[If you are really desperate, you find the solution linked here.]

]]> http://4nomore.net/2006/04/5plus5plus5/feed/ 0 Circle With Points & Intersections http://4nomore.net/2006/04/circlewithpoints-intersections/ http://4nomore.net/2006/04/circlewithpoints-intersections/#comments Wed, 19 Apr 2006 23:53:00 +0000 admin http://4nomore.net/wordpress/2006/04/circlewithpoints-intersections/ Have a look at this circle with 6 points:

Here the lines between the 6 points on the circle intersect 15 times.

Given n points on a circle with all connecting lines – how many intersections will there be (maximal, or without an ‘degenerate’ cases)?

Giving up? You can find the solution here.

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