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Guest Message by DevFuse


Member Since 19 Jan 2013
Offline Last Active Jan 19 2013 06:10 PM

Topics I've Started

Ants On a Ruler

19 January 2013 - 02:24 AM

You have a one meter ruler. We will drop 200 ants on to the ruler, each ant falling at a location along the ruler which is uniformly distributed. When an ant falls, it goes left or right with equal probability. When two ants bump into each other they reverse directions. Each ant moves along the string at a speed of 1 meter per minute. How long will it take for all the ants to fall off the ruler?