document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=511398>Question 511398</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mahmoud runs to a marker and back in 15 minutes. His speed on the way to the marker was 5m/s and his speed on the way back was 4m/s. Find the distance to the marker. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #342215 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=342215\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Avg speed = 2*5*4/(5+4) = 40/9 m/sec for the round trip.<BR>\n" );
document.write( "2d = (40/9) m/sec * 15 min * 60 sec/min = 36000/9 meters = 4 km<BR>\n" );
document.write( "d = 2 kilometers<BR>\n" );
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