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

Home > General
Suzy and the tricycle (Posted on 2004-02-24) Difficulty: 1 of 5
Little Suzy has a tricycle (you know, with three wheels). She wants to travel 1 mile with the tricycle, but she wants to spare her tyres (you know the price on tricycle tyres just keep going up). She is taking 2 spare tyres.

Assume she knows when to exchange wheels so that each of them travels an equal distance. How far does each wheel travel at the end of one mile? How did she exchange the wheels?

No Solution Yet Submitted by ratsnstuff    
Rating: 2.8333 (6 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
No Subject | Comment 4 of 13 |
You have 5 tires to ride 3 miles, so 0.6 miles per tire.
The solution that minimizes the number of exchange tires requires you to exchange one tire each 0.2 miles. Ady's solution minimizes the number of pit stops, but considering that little Suzy should be a lazy lady, probably she would be bored stopping for two tires exchange, so it is more likely she would prefer frequent pit stops, taking a snack and exchanging her tire. So, my suggestion would be begin with tires 1,2,3 and after 0.2 miles use 1,2,4, then 1,5,4, then 3,5,4 and finally 3,5,2. And I agree with Penny, each tire 'travels' one mile and rides 0.6 miles... :)
  Posted by Roberto Mattos on 2004-02-24 10:28:39
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information