Question 1040624
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Hi, this problem's been bugging me for a few days now... Thanks for the help!

Two bicyclists are 7/8 of the way through a mile long tunnel when a train approaches the closer end at 40 mph. 
The riders take off at the same speed in opposite directions and each escapes the tunnel as the train passes them. 
How fast did they ride?

Thanks again!
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It is a classic problem on Travel and Distance known for many years.  (And I know it very well . . . )

The similar problem was solved in the lesson <A HREF=https://www.algebra.com/algebra/homework/word/travel/A-man-crossing-a-bridge-when-a-train-comes-from-behind.lesson>A man crossing a bridge and a train coming from behind</A> in this site.

I even copy and past that problem condition here for your convenience.


    A man is three eighths of the way across a bridge when he hears a train coming from behind. 

    If he runs as fast as possible back toward the train, &nbsp;he will get off the bridge just in time to avoid a collision.

    Also, &nbsp;if he runs as fast as possible away from the train, &nbsp;he will get off the bridge &nbsp;(on the other side)&nbsp; just in time to avoid a collision.

    The train is traveling at &nbsp;60 miles per hour. &nbsp;How fast does the man run?


You can consider and use that solution as a sample for your problem.

If you still will have difficulties in solving it, then please let me know (through the "Thank you" message . . ), and I will help you.

In this case please do not forget to refer on the problem ID number (1040624) in order I could identify it. Thank you.
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