document.write( "Question 1112317: 2 trains travel at speeds of 72km/h and 48km/h respectively. If they start at the same time and travel towards each other from two places 600km apart, how long will it be before they meet? \n" ); document.write( "
Algebra.Com's Answer #727335 by Alan3354(69443)\"\" \"About 
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2 trains travel at speeds of 72km/h and 48km/h respectively. If they start at the same time and travel towards each other from two places 600km apart, how long will it be before they meet?
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\n" ); document.write( "Add the speeds when going in opposite directions.
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\n" ); document.write( "d = r*t
\n" ); document.write( "t = d/r
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