document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=459622>Question 459622</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car passes a landmark on a highway traveling at a constant rate of  kilometers per hour. Half an hour later, a second car passes the same landmark traveling in the same direction at  kilometers per hour. How much time after the second car passes the landmark will it overtake the first car? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #315164 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=315164\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First car  speed = x kmph<BR>\n" );
document.write( "Second car speed = y kmph<BR>\n" );
document.write( "..<BR>\n" );
document.write( "second car passes the lad mark 1/2 hour later.<BR>\n" );
document.write( "So in Half hour Car A has passes = x/2 km<BR>\n" );
document.write( "..<BR>\n" );
document.write( "They are travelling in same direction<BR>\n" );
document.write( "so catch up speed = y-x kmph<BR>\n" );
document.write( "..<BR>\n" );
document.write( "Catch up distance = x/2 km<BR>\n" );
document.write( ",...<BR>\n" );
document.write( "Catch up time = (x/2) / (y-x) hours <BR>\n" );
document.write( "=x/(2(y-x)hours </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );