document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=763519>Question 763519</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the speed of a freight train is 12km/h slower than the speed of a passenger train the freight train travel 348km in the same time it takes the passenger train to travel 420 km find the speed of the freight train </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #464900 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=464900\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Passenger train = x<BR>\n" );
document.write( "Freight train = x - 12<BR>\n" );
document.write( "348km/x-12 = 420/x<BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "348x = 420(x - 12)<BR>\n" );
document.write( "348x = 420x - 5040<BR>\n" );
document.write( "-72x = -5040<BR>\n" );
document.write( "   -x = -70<BR>\n" );
document.write( "    x = 70km/hr<BR>\n" );
document.write( "Passenger train's speed = 70 km/hr<BR>\n" );
document.write( "Freight train's speed = 58 km/hr<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "348/58 = 420/70<BR>\n" );
document.write( "    6 = 6<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );