All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Logic
Light at the end of the tunnel (Posted on 2002-05-26) Difficulty: 3 of 5
A man was walking through a tunnel. He is 1/4 of the way through when he hears a train approaching the tunnel from behind him.

If he turns and runs back, he will make it out of the tunnel just as the train is entering it (and will save himself by a hair). If he goes forward to the far end of the tunnel, he will also just barely make it, emerging from the tunnel just as the train is about to catch up to him.

If the man's running speed is 7 miles per hour, how fast is the train moving?


See The Solution Submitted by levik    
Rating: 3.5000 (14 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: re: Kind of answer | Comment 7 of 12 |
(In reply to re: Kind of answer by levik)

Sorry about that Levik. What you say is true.
  Posted by Dulanjana on 2002-06-02 06:54:49

Please log in:
Remember me:
Sign up! | Forgot password

Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (5)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2020 by Animus Pactum Consulting. All rights reserved. Privacy Information