document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=759621>Question 759621</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An express bus travels a certain 320km route in 1hr less time than it takes a local buss to travel a 300km route. Find the speed of each bus if the speed of the local is 20km/h less than that of the express. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #462205 by </B><A HREF=/tutors/aboutme.mpl?userid=sachi><B>sachi(548)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sachi><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=sachi><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=462205\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the speed of the local is 20km/h less than that of the express<BR>\n" );
document.write( "so let the speed of the express bus=x & that of local=x-20<BR>\n" );
document.write( "An express bus travels a certain 320km route in 1hr less time than it takes a local buss to travel a 300km route.<BR>\n" );
document.write( "so time taken by both bussed are <BR>\n" );
document.write( "the express took 320/x & the local took 300/(x-20)<BR>\n" );
document.write( "as per question <BR>\n" );
document.write( "300/(x-20)-320/x=1<BR>\n" );
document.write( "or 300x-320(x-20)=x(x-20) multiplying x)x-20) on both sides<BR>\n" );
document.write( "or 300x-320x+6400=x^2-20x<BR>\n" );
document.write( "or -20x+6400=x^2-20x<BR>\n" );
document.write( "or x^2=6400<BR>\n" );
document.write( "or x=80 kmph= speed of express<BR>\n" );
document.write( "& the speed of local=80-20=60 kmph </SPAN>\n" );
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