document.write( "Question 514714: if one train leaves the station going 80mph and 3 hours later another train going at 100mph leaves the same exact station going the same direction on parallel tracks, what time will the second train catch up?
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Algebra.Com's Answer #343584 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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if one train leaves the station going 80mph and 3 hours later another train going at 100mph leaves the same exact station going the same direction on parallel tracks, what time will the second train catch up?
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\n" ); document.write( "Actually you can do this in your head
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\n" ); document.write( "After 3 hrs the 1st train will be 3*80=240 mi ahead of the second.
\n" ); document.write( "The relative speed between the two trains is 100-80 = 20 mph
\n" ); document.write( "How long will it take to travel 240 mi at 20 mph? 12 hrs, right \n" ); document.write( "

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