Which One Is Older? (Math Chat)
Library Home 
Full Table of Contents 
Suggest a Link 
Library Help
http://www.maa.org/features/mathchat/mathchat_7_20_00.html  


Frank Morgan, MAA Online  
Creative solutions to the challenge: how can two people determine which is older without revealing their ages? Math videos available from the Mathematical Sciences Research Institute via the MAA. "Mathematics in Arcadia," "Fermat's Last Theorem," as seen on TV as "The Proof" on NOVA. New Challenge: a small creature needs to find its way from a random point on an milewide strip of land to the sea on either side, by going distance r in a random direction and then (if it has not yet found the water), turning once t degrees to the right and continuing thereafter in a straight line. What choices of r and t minimize the expected journey length to the sea?  


Levels:  High School (912), College 
Languages:  English 
Resource Types:  Video, Articles 
Math Topics:  ProblemSolving 
[Privacy Policy] [Terms of Use]
© 19942014 Drexel University. All rights reserved.
http://mathforum.org/
The Math Forum is a research and educational enterprise of the Drexel University School of Education.