document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=477166>Question 477166</A>: <I><SPAN STYLE=\"word-break: break-all;\"> two trains running in opposite direction with speeds 30 km/hr and 50km/hr crosees each other in 15 sec.what is the length of the fastest train? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #327097 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=327097\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> two trains running in opposite direction with speeds 30 km/hr and 50km/hr cross each other in 15 sec.  what is the length of the fastest train?<BR>\n" );
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document.write( "Combined speed = 80 (km/hr)(hr/3600 sec)(1000 m/km) = 22.22 meters.sec<BR>\n" );
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document.write( "15(22.22) = 333.33 meters in 15 seconds<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "The ratio of the trains speeds is 5:3<BR>\n" );
document.write( "5x + 3x = 333.33<BR>\n" );
document.write( "8x = 333.33<BR>\n" );
document.write( "x = 41.666.<BR>\n" );
document.write( "5x = 208.33 meters (length of the faster train)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.   </SPAN>\n" );
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