document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=995930>Question 995930</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How far can a man drive into a country if he drives out at 40 miles per hour, returns over the same road at 30 miles per hour, and spends 8 hours away from home, including a 1-hour stop for lunch? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #614593 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=614593\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How far can a man drive into a country if he drives out at 40 miles per hour, returns over the same road at 30 miles per hour, and spends 8 hours away from home, including a 1-hour stop for lunch?<BR>\n" );
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document.write( "Avg speed of a round trip = 2*r1*r2/(r1 + r2)<BR>\n" );
document.write( "= 2*40*30/(40+30) = 240/7 mi/hr<BR>\n" );
document.write( "Driving for 7 hours --> RT distance = (240/7)*7 = 240 miles<BR>\n" );
document.write( "--> 120 miles each way. </SPAN>\n" );
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