document.write( "Question 336061: I need help solving this problem.\r
\n" ); document.write( "\n" ); document.write( "A car travels 300 km in the same amount of time that a freight train travels 200 km. The speed of the car is 20km/hr more than the speed of the train. Find the speed of both the car and the train.
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Algebra.Com's Answer #241007 by mananth(16946)\"\" \"About 
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let speed of train be x km/hr
\n" ); document.write( "speed of car = x+20 km/hr
\n" ); document.write( "..
\n" ); document.write( "distance by car = 300 km
\n" ); document.write( "distance by train = 200 km
\n" ); document.write( "..
\n" ); document.write( "Time taken by both is same
\n" ); document.write( "200/x = 300 (x+20)
\n" ); document.write( "300x = 200(x+20)
\n" ); document.write( "300x = 200x +4000
\n" ); document.write( "add -200x
\n" ); document.write( "300x-200x=4000
\n" ); document.write( "100x = 4000
\n" ); document.write( "x = 40 km/hr speed of train
\n" ); document.write( "x+20 = 40 +20 = 60km/hr. speed of car
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