document.write( "Question 341582: Two trains leave the station at the same time, one heading west and the other east. The westbound train travels 20 miles per hour slower than the eastbound train. If the two trains are 900 miles apart after 5 hours, what is the rate of the westbound train? \n" ); document.write( "
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Two trains leave the station at the same time, one heading west and the other east. The westbound train travels 20 miles per hour slower than the eastbound train. If the two trains are 900 miles apart after 5 hours, what is the rate of the westbound train?
\n" ); document.write( "..
\n" ); document.write( "let east bound train (A) speed =x mph
\n" ); document.write( "west bound train(B) speed will be x-20 mph.\r
\n" ); document.write( "\n" ); document.write( "..
\n" ); document.write( "Distance = speed * time
\n" ); document.write( "distance traveled by train A = 5x
\n" ); document.write( "distance traveled by train B = 5*(x-20)
\n" ); document.write( "..
\n" ); document.write( "5x+5(x-20)=900
\n" ); document.write( "5x+5x-100 =900
\n" ); document.write( "10x=900+100
\n" ); document.write( "10x=1000
\n" ); document.write( "x=100 mph east bound train
\n" ); document.write( "west bound train = 100-20=80 mph
\n" ); document.write( ".. \n" ); document.write( "
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