document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=263749>Question 263749</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 	How far upstream can a motorboat travel at 8 mi/hr and still return downstream at 12 mi/hr in a total time of 4 hr?\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #194355 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=194355\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> How far upstream can a motorboat travel at 8 mi/hr and still return downstream at 12 mi/hr in a total time of 4 hr?\r<BR>\n" );
document.write( "\n" );
document.write( "let the time taken upstream be x<BR>\n" );
document.write( "the down stream time will be 4-x hrs.\r<BR>\n" );
document.write( "\n" );
document.write( "speed upstream = 8mph\r<BR>\n" );
document.write( "\n" );
document.write( "distance upstream = 8*x\r<BR>\n" );
document.write( "\n" );
document.write( "distance down stream = 12*(4-x)\r<BR>\n" );
document.write( "\n" );
document.write( "8x= 48-12x<BR>\n" );
document.write( "16x=48<BR>\n" );
document.write( "x=3 hour---------------------------------- 24 miles<BR>\n" );
document.write( "down stream time = 1hour\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );