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#1 2013-07-25 02:28:51

anna_gg
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Bridge and river

Person A left Town X at 10:18 am. He walked at a constant speed and arrived at town Z at 1:30 pm. On the same day, Person B left town Z at 9 am. Person B walked the same route in the opposite direction at a constant speed. Person B arrived at town X at 11:40 am. The road crosses a wide river. By coincidence, both arrived at the bridge on opposite sides of the river at the same instant. Person A left the bridge 1 minute later than Person B. At what time did they arrive at the bridge?

 

#2 2013-07-26 01:46:45

bobbym
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Re: Bridge and river

Hi;


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

#3 2013-08-02 19:52:24

anna_gg
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Re: Bridge and river

bobbym wrote:

Hi;

Correct! Thank you!!!

 

#4 2013-08-02 20:30:18

bobbym
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Re: Bridge and river

Hi;

You are welcome. Thanks for the problem.


In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.
 

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