document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=910250>Question 910250</A>: <I><SPAN STYLE=\"word-break: break-all;\"> two towns A and B are 80km apart. A passenger bus travels daily from A to B in heavy mist it has to travel 20km/h slower than in good weather and reaches its destination 12 minutes later than the usual what is the speed of the bus in good weather. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #552324 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=552324\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> two towns A and B are 80km apart. A passenger bus travels daily from A to B in heavy mist it has to travel 20km/h slower than in good weather and reaches its destination 12 minutes later than the usual what is the speed of the bus in good weather.<BR>\n" );
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document.write( "let x=speed of bus in good weather<BR>\n" );
document.write( "x-20=speed of bus in heavy mist<BR>\n" );
document.write( "distance/speed=travel time<BR>\n" );
document.write( "12 min=1/5 hr<BR>\n" );
document.write( "..<BR>\n" );
document.write( "80/(x-20)-80/x=1/5<BR>\n" );
document.write( "lcd:x(x-20)<BR>\n" );
document.write( "80x-80x+1600=(x^2-20x)/5<BR>\n" );
document.write( "x^2-20x-8000=0<BR>\n" );
document.write( "(x+80)(x-100)=0<BR>\n" );
document.write( "x=100<BR>\n" );
document.write( "speed of bus in good weather=100 km/hr </SPAN>\n" );
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