document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=799244>Question 799244</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A motorist travelled a total distance of 432 km and had an average speed of 80km/h on highways and an average speed of 32km/h while passing through towns. If the journey took 6 hours, find how long the motorist spent travelling on highways. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #482569 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=482569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let the distance on highway be x-------------80km/h<BR>\n" );
document.write( "distance in town = 432-x--------------------32km/h\r<BR>\n" );
document.write( "\n" );
document.write( "time on highway + time in town = 6\r<BR>\n" );
document.write( "\n" );
document.write( "t=d/r\r<BR>\n" );
document.write( "\n" );
document.write( "x/80 + (432-x)/32 = 6\r<BR>\n" );
document.write( "\n" );
document.write( "32x+80(432-x)=6*32*80\r<BR>\n" );
document.write( "\n" );
document.write( "32x+34560-80x=15360<BR>\n" );
document.write( "-48x=-19200\r<BR>\n" );
document.write( "\n" );
document.write( "x=400 km  on highways </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );