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April 2005

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Answer:

Click here to download the pdf solution for April's puzzle.

This puzzle was originally due to Marius Cavache; it appeared as exercise 10674 in the American Mathematical Monthly (vol.107, Aug.-Sept. 2000, p. 654).An alternate proof appears at http://www.mathlinks.ro/Forum/topic-4556.html


If you have any problems you think we might enjoy, please send them in. All replies should be sent to: webmster@us.ibm.com