perplexus.info :: Just Math : From A to B

From A to B (Posted on 2002-05-15)

A car drives downhill with the speed of 90 m/h. On a level road, the same car goes 72 m/h, and uphill it goes "only" 60 m/h.

It takes this car 5 hours to go from town A to town B. The return trip only takes 4 hours.

Find the distance between the two towns.

See The Solution Submitted by levik

Rating: 3.8667 (15 votes)

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Puzzle Solution With Explanation	K Sengupta	2007-06-12 11:43:43
Answer	K Sengupta	2007-06-12 11:29:46
Not so hard	David Johnson	2007-01-15 23:52:11
a philosophical remark -better late than never	Ady TZIDON	2004-01-31 12:16:03
Simpler Algebra	Charlie	2003-02-10 02:50:33
re(3): Alternate approach	Cory Taylor	2002-11-26 09:16:35
re(2): Alternate approach	levik	2002-11-25 10:39:20
re: Alternate approach	Cory Taylor	2002-11-25 05:01:05
Alternate approach	TomM	2002-05-16 08:29:54
I can't subtract...	Happy	2002-05-16 03:48:12
re: pure algebra	Ender	2002-05-16 03:09:06
re: pure algebra	levik	2002-05-15 11:57:44
oops, reverse that	Happy	2002-05-15 09:17:10
pure algebra	Happy	2002-05-15 09:14:35

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info