Random Paths

...can only travel 'right' or/and 'up' on the grid. Observe, experiment, ... and think how many different paths are there to reach the red point...

This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com

D.Kobal with GeoGebra

See some other nice examples.