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From A to B (Posted on 2002-05-15) Difficulty: 5 of 5
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)

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Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionPuzzle Solution With ExplanationK Sengupta2007-06-12 11:43:43
AnswerK Sengupta2007-06-12 11:29:46
Some ThoughtsNot so hardDavid Johnson2007-01-15 23:52:11
Some Thoughtsa philosophical remark -better late than neverAdy TZIDON2004-01-31 12:16:03
Simpler AlgebraCharlie2003-02-10 02:50:33
re(3): Alternate approachCory Taylor2002-11-26 09:16:35
re(2): Alternate approachlevik2002-11-25 10:39:20
re: Alternate approachCory Taylor2002-11-25 05:01:05
SolutionAlternate approachTomM2002-05-16 08:29:54
I can't subtract...Happy2002-05-16 03:48:12
re: pure algebraEnder2002-05-16 03:09:06
re: pure algebralevik2002-05-15 11:57:44
oops, reverse thatHappy2002-05-15 09:17:10
pure algebraHappy2002-05-15 09:14:35
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