document.write( "Question 803347: Sarah spent 2hrs more travelling by train than by bus. The train averaged 70
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Algebra.Com's Answer #484290 by mananth(16946)\"\" \"About 
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Sarah spent 2hrs more travelling by train than by bus. The train averaged 70
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\n" ); document.write( "\n" ); document.write( "Let time on bus be x
\n" ); document.write( "time on train = x+2\r
\n" ); document.write( "\n" ); document.write( "bus rate = 50 km/h
\n" ); document.write( "train rate = 70km/h\r
\n" ); document.write( "\n" ); document.write( "distance bus + distance train = 740\r
\n" ); document.write( "\n" ); document.write( "d=rt\r
\n" ); document.write( "\n" ); document.write( "50x+70(x+2)=740\r
\n" ); document.write( "\n" ); document.write( "50x+70x+140=740\r
\n" ); document.write( "\n" ); document.write( "120x+140=740\r
\n" ); document.write( "\n" ); document.write( "120x=600
\n" ); document.write( "/120
\n" ); document.write( "x=5 hours Time on bus
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