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Best Answer harey, 10 October 2013 - 04:39 PM

Spoiler for The Meaning of Life:

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#1 bonanova

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Posted 10 October 2013 - 12:50 PM

A boy walks out on a train trestle high above a river. He has walked 4/7 of the way across the trestle when he spots a train coming at him head-on. He realizes that he has just enough time either to run toward the train and jump off the trestle or to run away from the train and get off the trestle. If the boy can run 6 miles per hour, how fast is the train moving toward him?

 

Can you answer without writing anything down?


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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#2 harey

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Posted 10 October 2013 - 04:39 PM   Best Answer

Spoiler for The Meaning of Life:


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#3 bonanova

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Posted 11 October 2013 - 08:42 PM

Nice thinking.

Away with equations!


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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#4 harey

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Posted 12 October 2013 - 09:06 AM

Away with equations!

Is there a solution w/o equations? I mean more simple?


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#5 bonanova

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Posted 12 October 2013 - 08:12 PM

 

Away with equations!

Is there a solution w/o equations? I mean more simple?

 

 

You did away with equations nicely. Your last two sentences are the solution.


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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#6 harey

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Posted 12 October 2013 - 08:50 PM

I agree. (I just wanted to be VERY clear.)


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