perplexus.info :: Just Math : A to B

A to B (Posted on 2004-03-10)

You need to go from point A to point B, and then back to point A. Points A and B are 20 miles apart. You go to point B at a constant speed of 15 miles per hour. If you want your overall speed to be 30 miles per hour, how fast would you have to go from point B back to point A?

See The Solution Submitted by ethan

Rating: 1.8182 (11 votes)

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Subject	Author	Date
Puzzle Solution : Method II	K Sengupta	2008-03-30 06:24:26
Puzzle Solution With Explanation	K Sengupta	2008-03-28 05:53:05
Answer	K Sengupta	2008-03-21 13:06:43
re: Over complicated	Charlie	2004-10-10 18:59:06
Over complicated	alex	2004-10-10 17:56:08
solution	Detti Herman	2004-10-04 15:34:34
re(2): solution	Rohan Shah	2004-03-14 07:10:12
re: solution	Richard	2004-03-10 20:17:40
solution	amanda	2004-03-10 18:26:58
A little relativity	Jils	2004-03-10 16:14:35
re: why distance??	ThoughtProvoker	2004-03-10 10:51:21
why distance??	Ady TZIDON	2004-03-10 10:30:04
Solution	Penny	2004-03-10 08:49:39
An explanation	e.g.	2004-03-10 08:46:24
Solution	e.g.	2004-03-10 08:41:47

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