document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1173678>Question 1173678</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The speed of one train is 15 km/h greater than that of another train . Both trains leave at the<BR>\n" );
document.write( "same time from stations 428 km apart . If they pass 4 h later , what is the speed of each train ? (Assume trains are going towards each other)<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #798961 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=798961\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> combined speed is x + x+15=2x+15 km/h <BR>\n" );
document.write( "428 km needs to be closed, and in 4 hours, they cover 8x+60 km\r<BR>\n" );
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document.write( "that sum, or 8x+60=428<BR>\n" );
document.write( "8x=368<BR>\n" );
document.write( "x=46 km/h  for slower train<BR>\n" );
document.write( "x+15=61 km/h for faster train<BR>\n" );
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