document.write( "Question 673048: A passenger train's speed is 60mi/h and a freight trains speed is 40mi/h. the passenger train travels the same distance in 1.5 hour less time then the freight train. How long does each train take to make the trip?\r
\n" ); document.write( "\n" ); document.write( "I know d= r*t and t=d/r, but no where in the problem does it say what the overall time of the trip was, just that one train was 1.5 hr less. Please help.
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Algebra.Com's Answer #418460 by mananth(16946)\"\" \"About 
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let distance be x
\n" ); document.write( "passenger train speed = 60 mi/h
\n" ); document.write( "time pasanger train = x/60\r
\n" ); document.write( "\n" ); document.write( "Similarly time freight train = x/40\r
\n" ); document.write( "\n" ); document.write( "Difference between the two timings is 1.5\r
\n" ); document.write( "\n" ); document.write( "x/40 -x/60 = 1.5\r
\n" ); document.write( "\n" ); document.write( "LCD = 120
\n" ); document.write( "3x-2x=120*1.5
\n" ); document.write( "x= 180 miles\r
\n" ); document.write( "\n" ); document.write( "Passenger train takes 180/60 = 3 hours
\n" ); document.write( " Freight tain takes 180/40 = 4.5 hours\r
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