document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=883601>Question 883601</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A train is traveling at a constant rate. If it passes through a 360 meter long tunnel, it takes 16 seconds. If the train passes over a 1.2 kilometre bridge, it takes 40 seconds. How long is the train? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #533632 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=533632\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A train is traveling at a constant rate. If it passes through a 360 meter long tunnel, it takes 16 seconds. If the train passes over a 1.2 kilometre bridge, it takes 40 seconds. How long is the train?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=length of train<BR>\n" );
document.write( "speed=distance/travel time (equal for both tunnel and bridge)<BR>\n" );
document.write( "distance=length of train plus length of tunnel or bridge<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28360%2Bx%29%2F16=%281200%2Bx%29%2F40 ALIGN=MIDDLE  ALT=\"%28360%2Bx%29%2F16=%281200%2Bx%29%2F40\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "40(360+x)=16(1200+x)<BR>\n" );
document.write( "14400+40x=19200+16x<BR>\n" );
document.write( "24x=4800<BR>\n" );
document.write( "x=200<BR>\n" );
document.write( "length of train=200 m </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );