wu :: forums - Print Page


    
      
        wu :: forums
        (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi)
      

        riddles >> microsoft >> Flying bird
        
(Message started by: Nick on Feb 13^th, 2003, 12:28am)

Title: Flying bird
Post by Nick on Feb 13^th, 2003, 12:28am

Dear all,
Last one today.
And does anybody know the answer to the question posted on the walking a mile north, east, then south and then ending up at the same place?

One train leaves Los Angeles at 15mph heading for New York. Another train leaves from New York at 20mph heading for Los Angeles on the same track. If a bird, flying at 25mph, leaves from Los Angeles at the same time as the train and flies back and forth between the two trains until they collide, how far will the bird have traveled?

Nick

Title: Re: Flying bird
Post by wowbagger on Feb 13^th, 2003, 3:35am

on 02/13/03 at 00:28:35, Nick wrote:

And does anybody know the answer to the question posted on the walking a mile north, east, then south and then ending up at the same place?

Yes. :)
You might want to take a look at this (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_medium;action=display;num=1029287595;start=0) or even this (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_medium;action=display;num=1041549337) (Globe Traversal (http://www.ocf.berkeley.edu/~wwu/riddles/medium.shtml#globeTraversal)).

Quote:

One train leaves Los Angeles at 15mph heading for New York. Another train leaves from New York at 20mph heading for Los Angeles on the same track. If a bird, flying at 25mph, leaves from Los Angeles at the same time as the train and flies back and forth between the two trains until they collide, how far will the bird have traveled?

See the Hummingbird (http://www.ocf.berkeley.edu/~wwu/riddles/easy.shtml#hummingbird) riddle and corresponding thread (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board=riddles_easy;action=display;num=1027805341).