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Bouncy ladybugs (Posted on 2006-12-05) Difficulty: 2 of 5
Thirty-three ladybugs are sitting on a one meter stick. Suddenly all ladybugs start crawling either to the left or to the right with a constant speed of one meter per minute. When two ladybugs meet, they reverse directions immediately. If one arrives at the end of the stick, it falls off. Considering all possible initial configurations, what is the longest time it can take until all ladybugs have fallen off?

See The Solution Submitted by JLo    
Rating: 4.0000 (3 votes)

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Answer | Comment 4 of 5 |

The ongest time  taken until all ladybugs have fallen off is 60 seconds. 


  Posted by K Sengupta on 2008-12-21 06:21:14
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