document.write( "Question 536506: train A leaves the station traveling at 20 miles per hour. Eight houes later train B leaves the same station traveling in the same direction at 30 miles per hour. how long does it take for train B to catch up to train A? \n" ); document.write( "
Algebra.Com's Answer #352399 by Alan3354(69443)\"\" \"About 
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The 1st train is 160 miles away (20*8)
\n" ); document.write( "The 2nd train gains on the 1st at 10 mi/hr (30 - 20)
\n" ); document.write( "160/10 = 16 hours
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