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

Home > Shapes > Geometry
The toll of two cities (Posted on 2017-02-20) Difficulty: 3 of 5
The two cities, A(0,a) and B(b,-c), are separated by a river (river's banks are defined by y=0 and y=a/10). A bridge, about to be erected must be perpendicular to river's banks (i.e. line x=d).

Evaluate d to minimize the travel distance between A and B.

  Submitted by Ady TZIDON    
No Rating
Solution: (Hide)
Answer: d = 9ab/(9a+10c).
Full solution @ Brian Smith's post.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionSolutionBrian Smith2017-02-20 10:08:15
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 (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Copyright © 2002 - 2019 by Animus Pactum Consulting. All rights reserved. Privacy Information