document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=691046>Question 691046</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A person sitting in a train which is travelling at 60 kmph finds that another train in the opposite direction takes 8 seconds to pass him. What is the speed of the second train if it is 140 meters long? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #426474 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=426474\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A person sitting in a train which is traveling at 60 km/h finds that another train in the opposite direction takes 8 seconds to pass him.<BR>\n" );
document.write( " What is the speed of the second train if it is 140 meters long?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let s = speed of 2nd train<BR>\n" );
document.write( ":<BR>\n" );
document.write( "the relative speed between the two trains = (s+60)<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Convert 140 m to .140 km<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F3600 ALIGN=MIDDLE  ALT=\"8%2F3600\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time in hrs\r<BR>\n" );
document.write( "\n" );
document.write( "Write a time equation, time = dist/speed<BR>\n" );
document.write( ":<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.140%2F%28%28s%2B60%29%29 ALIGN=MIDDLE  ALT=\".140%2F%28%28s%2B60%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F3600 ALIGN=MIDDLE  ALT=\"8%2F3600\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "8(s+60) = .14 * 3600<BR>\n" );
document.write( "8s + 480 = 504<BR>\n" );
document.write( "8s = 504 - 480<BR>\n" );
document.write( "8s = 24 <BR>\n" );
document.write( "s = 24/8<BR>\n" );
document.write( "s = 3 km/hr speed of the 2nd train </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );