perplexus.info :: General : A Boy, a Girl, and a Dog

A Boy, a Girl, and a Dog (Posted on 2004-01-24)

A boy, a girl and a dog are standing together on a long, straight road. Simultaneously, they all start walking in the same direction: The boy at 4 mph, the girl at 3 mph, and the dog trots back and forth between them at 10 mph. Assume all reversals of direction instantaneous.

In one hour, where is the dog and in which direction is he facing?

See The Solution Submitted by DJ

Rating: 4.0000 (8 votes)

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

Subject	Author	Date
Puzzle Thoughts	K Sengupta	2023-05-24 01:45:04
I beg to differ with everybody	jduval	2013-09-24 02:12:27
the solution is posted, but...	sean	2005-08-23 02:08:12
Here Lassie !	Wendy	2004-02-18 17:19:47
re: Sit !! Stay !!	Richard	2004-01-27 14:36:27
tee hee	Cindy	2004-01-27 14:03:51
Any which way	Jils	2004-01-26 08:55:19
Barking mad solution	retiarius	2004-01-26 05:53:46
re: Sit !! Stay !!	Ady TZIDON	2004-01-25 07:15:47
Sit !! Stay !!	Penny	2004-01-24 22:47:48
re: Question: "Abandon All Common Sense..."	TomM	2004-01-24 20:51:54
re: Question	Richard	2004-01-24 20:43:45
Question	Penny	2004-01-24 20:02:59
thoughts	Charlie	2004-01-24 14:34:48
re: Official solution (spoiler)	Richard	2004-01-24 12:25:45
Official solution (spoiler)	Penny	2004-01-24 10:24:18

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