document.write( "Question 265446: One car travels 40 km/hr faster than another. While one travels 150 km, the other goes 350 km. Find the speed of the slower car. \n" ); document.write( "
Algebra.Com's Answer #195154 by palanisamy(496)\"\" \"About 
You can put this solution on YOUR website!
Let the speed of the slower car = x
\n" ); document.write( "Then the speed of the faster car = x+40
\n" ); document.write( "Given,while one travels 150 km, the other goes 350 km
\n" ); document.write( "Time = distance/speed
\n" ); document.write( "150/x = 350/(x+40)
\n" ); document.write( "3/x = 7/(x+40)
\n" ); document.write( "3(x+40) = 7x
\n" ); document.write( "3x+120 = 7x
\n" ); document.write( "120 = 7x-3x
\n" ); document.write( "120 = 4x
\n" ); document.write( "4x = 120
\n" ); document.write( "x = 120/4
\n" ); document.write( "x = 30 km/h
\n" ); document.write( " \n" ); document.write( "
\n" );