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The Ant Walk
Posted 02 July 2012 - 01:40 PM
The is a circle of radius 3 meters with an ant in the centre. The ant picks a direction randomly, all angles have an equal probability. It walks in this direction for 1 meter before fogetting where it was going and chosing another direction randomly. This could go on forever, but on average how many meters has the ant travelled before it exists the circle?
Computers are allowed, but I do want to see a mathematical solution.
Posted 02 July 2012 - 04:42 PM
Only the radius has been changed.
Edited by fabpig, 02 July 2012 - 04:44 PM.
You must not think me necessarily foolish because I am facetious, nor will I consider you necessarily wise because you are grave. Sydney Smith.
Posted 02 July 2012 - 05:40 PM
Since I contributed a question that that thread, I'll answer it after answering the OP.
jim gives the same answer above.
- Bertrand Russell
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