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 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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