document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=827635>Question 827635</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two runners A and B are practicing in a round track going in opposite directions. Runner A takes 40 minutes to go once around the track. The two begin at the same time and meet every 15 minutes. How long does B take to go once around the track? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #498812 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=498812\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two runners A and B are practicing in a round track going in opposite directions. Runner A takes 40 minutes to go once around the track. The two begin at the same time and meet every 15 minutes. How long does B take to go once around the track?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Let's assume the track length is 12000 meters<BR>\n" );
document.write( "then<BR>\n" );
document.write( "12000/40 = 300 m/min is A's speed<BR>\n" );
document.write( "A travels 15 * 300 = 4500 meters in 15 min<BR>\n" );
document.write( "therefore<BR>\n" );
document.write( "B travels 12000 - 4500 = 7500 meters in 15 min<BR>\n" );
document.write( "therefore<BR>\n" );
document.write( "7500/15 = 500 m/min is B's speed<BR>\n" );
document.write( "Find how long to travel 12000 meters at this speed<BR>\n" );
document.write( "12000/500 = 24 min for B to travel around the track </SPAN>\n" );
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