document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=678318>Question 678318</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car and a motorcycle set off from the same point to travel the same journey. The car has a start of four minutes before the motorcycle sets off. If the car travels at 80km/h and the motorcycle travels at 90km/h, how many kilometres will be travelled when the two vehicles are level?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #421358 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=421358\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the car and motorcycle meet after distance x\r<BR>\n" );
document.write( "\n" );
document.write( "car speed = 80 km/h<BR>\n" );
document.write( "motorcycle speed = 90 km/h\r<BR>\n" );
document.write( "\n" );
document.write( "They both travel the same distance\r<BR>\n" );
document.write( "\n" );
document.write( "The car takes 4 minutes more .= 4/60 = 1/15 hours\r<BR>\n" );
document.write( "\n" );
document.write( "time = distance /speed\r<BR>\n" );
document.write( "\n" );
document.write( "car time - motorcycle time = 1/15 hours\r<BR>\n" );
document.write( "\n" );
document.write( "(x/80)-(x/90) = 1/15\r<BR>\n" );
document.write( "\n" );
document.write( "LCD = 720\r<BR>\n" );
document.write( "\n" );
document.write( "multiply equation by 720\r<BR>\n" );
document.write( "\n" );
document.write( "9x-8x= 720/15<BR>\n" );
document.write( "x= 48 \r<BR>\n" );
document.write( "\n" );
document.write( "They will meet after 48 km </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );