document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=937744>Question 937744</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A train travels 300km at a constant speed of Vkm/h. If the train had travelled 5km/h faster, the journey would have taken two hours less. Find the speed of the train travelling at the lower speed. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #571156 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=571156\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A train travels 300km at a constant speed of Vkm/h. If the train had travelled 5km/h faster, the journey would have taken two hours less. Find the speed of the train travelling at the lower speed.<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let v=slower speed of trains<BR>\n" );
document.write( "v+5=faster speed of train<BR>\n" );
document.write( "travel time=distance/speed<BR>\n" );
document.write( "..<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300%2Fv-300%2F%28v%2B5%29=2 ALIGN=MIDDLE  ALT=\"300%2Fv-300%2F%28v%2B5%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "lcd:v(v+5)<BR>\n" );
document.write( "300v+1500-300v=2v(v+5)<BR>\n" );
document.write( "1500=2v^2+10v<BR>\n" );
document.write( "2v^2+10v-1500=0<BR>\n" );
document.write( "v^2+5v-750=0<BR>\n" );
document.write( "(v+30)(v-25)=0<BR>\n" );
document.write( "v=25<BR>\n" );
document.write( "lower speed of train=25 km/h </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );