document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=363474>Question 363474</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a given river,the current is 6miles per hour. A certain riverboat can travel 18 miles per hour in still water. How far upstream(against the current) can the boat travel if a round trip is to take 10 hours? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #259166 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=259166\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let the distance be x<BR>\n" );
document.write( "upstream speed = 12 mph<BR>\n" );
document.write( "..<BR>\n" );
document.write( "downstream speed = 24 mph<BR>\n" );
document.write( "t=d/r<BR>\n" );
document.write( "..<BR>\n" );
document.write( "x/12+x/24=10<BR>\n" );
document.write( "2x+x  /24 =10<BR>\n" );
document.write( "3x=240<BR>\n" );
document.write( "x=80 miles </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );