document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=904900>Question 904900</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Renz enters NLEX at an average of 60 km/hr. Frederick enters NLEX 30 minutes later at an average of 80 km/hr. How long will it take Frederick to overtake Renz? How far will they be then from the moment they enter the expressway? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548986 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=548986\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Gaining speed 80 -60= 20 kph<BR>\n" );
document.write( "Headstart  60*0.5 =30 km.<BR>\n" );
document.write( "Time to catch up 30/20=1.5 hours<BR>\n" );
document.write( "Algebraic solution<BR>\n" );
document.write( "60(t+0.5)=80t<BR>\n" );
document.write( "60t+30.0=80t<BR>\n" );
document.write( "30.0=80t-60t<BR>\n" );
document.write( "30.0=20t<BR>\n" );
document.write( "1.5=t<BR>\n" );
document.write( "Distance to meeting 1.5*80=120 km.\r<BR>\n" );
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