document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1084609>Question 1084609</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The speed of an ordinary  train is x km per hr and that of an express train is x+25 km per hr .(i) find the time taken by each train to cover a distance of 300km.(ii) if the ordinary  train takes 2hrs more than the express train;calculate speed of the express  train. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #698695 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=698695\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (1)<BR>\n" );
document.write( "Time for ordinary train:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300+%2F+x+ ALIGN=MIDDLE  ALT=\"+300+%2F+x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Time for express train:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300+%2F+x+%2B+25+ ALIGN=MIDDLE  ALT=\"+300+%2F+x+%2B+25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "------------------------<BR>\n" );
document.write( "(2)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300%2Fx+=+300%2F%28+x+%2B+25+%29+%2B+2+ ALIGN=MIDDLE  ALT=\"+300%2Fx+=+300%2F%28+x+%2B+25+%29+%2B+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x%2A%28+x+%2B+25+%29+ ALIGN=MIDDLE  ALT=\"+x%2A%28+x+%2B+25+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300%2A%28+x+%2B+25+%29+=+300x+%2B+2%2Ax%2A%28+x+%2B+25+%29+ ALIGN=MIDDLE  ALT=\"+300%2A%28+x+%2B+25+%29+=+300x+%2B+2%2Ax%2A%28+x+%2B+25+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300x+%2B+7500+=+300x+%2B+2x%5E2+%2B+50x+ ALIGN=MIDDLE  ALT=\"+300x+%2B+7500+=+300x+%2B+2x%5E2+%2B+50x+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2x%5E2+%2B+50x+-+7500+=+0+ ALIGN=MIDDLE  ALT=\"+2x%5E2+%2B+50x+-+7500+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x%5E2+%2B+25x+-+3750+=+0+ ALIGN=MIDDLE  ALT=\"+x%5E2+%2B+25x+-+3750+=+0+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Use quadratic formula<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+ ALIGN=MIDDLE  ALT=\"+x+=+%28+-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+a+=+1+ ALIGN=MIDDLE  ALT=\"+a+=+1+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+b+=+25+ ALIGN=MIDDLE  ALT=\"+b+=+25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+c+=+-3750+ ALIGN=MIDDLE  ALT=\"+c+=+-3750+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+-25+%2B-+sqrt%28+25%5E2-4%2A1%2A%28-3750%29+%29%29%2F%282%2A1%29+ ALIGN=MIDDLE  ALT=\"+x+=+%28+-25+%2B-+sqrt%28+25%5E2-4%2A1%2A%28-3750%29+%29%29%2F%282%2A1%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+-25+%2B-+sqrt%28+625+%2B+15000+%29%29%2F2+ ALIGN=MIDDLE  ALT=\"+x+=+%28+-25+%2B-+sqrt%28+625+%2B+15000+%29%29%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+-25+%2B-+sqrt%28+15625+%29%29%2F2+ ALIGN=MIDDLE  ALT=\"+x+=+%28+-25+%2B-+sqrt%28+15625+%29%29%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+%28+-25+%2B+125+%29+%2F+2+ ALIGN=MIDDLE  ALT=\"+x+=+%28+-25+%2B+125+%29+%2F+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ( can't use the negative sqrt )<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+100%2F2+ ALIGN=MIDDLE  ALT=\"+x+=+100%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+=+50+ ALIGN=MIDDLE  ALT=\"+x+=+50+\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x+%2B+25+=+75+ ALIGN=MIDDLE  ALT=\"+x+%2B+25+=+75+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The speed of the express train is 75 km/hr<BR>\n" );
document.write( "-----------------------------------------<BR>\n" );
document.write( "check:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300%2Fx+=+300%2F%28+x+%2B+25+%29+%2B+2+ ALIGN=MIDDLE  ALT=\"+300%2Fx+=+300%2F%28+x+%2B+25+%29+%2B+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+300%2F50+=+300%2F75+%2B+2+ ALIGN=MIDDLE  ALT=\"+300%2F50+=+300%2F75+%2B+2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+150+ ALIGN=MIDDLE  ALT=\"+150+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3%2A300+=+2%2A300+%2B+300+ ALIGN=MIDDLE  ALT=\"+3%2A300+=+2%2A300+%2B+300+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+900+=+600+%2B+300+ ALIGN=MIDDLE  ALT=\"+900+=+600+%2B+300+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+900+=+900+ ALIGN=MIDDLE  ALT=\"+900+=+900+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "OK<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );