document.write( "Question 767776: Town A and B are 400 miles apart. If a train leaves A in the direction of B at 50 miles per hour, how long will it take before that train meets another train, going from B to A, at the spped of 30 miles per hour?\r
\n" ); document.write( "\n" ); document.write( "A) 4 hours
\n" ); document.write( "B) 4 1/3 hours
\n" ); document.write( "C) 5 hours
\n" ); document.write( "D) 5 2/3 hours
\n" ); document.write( "E) 6 2/3 hours
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Algebra.Com's Answer #467847 by Alan3354(69443)\"\" \"About 
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Town A and B are 400 miles apart. If a train leaves A in the direction of B at 50 miles per hour, how long will it take before that train meets another train, going from B to A, at the spped of 30 miles per hour?
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\n" ); document.write( "When going in opposite directions, the speeds are added.
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\n" ); document.write( "d = r*t
\n" ); document.write( "t = d/r
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