document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=905982>Question 905982</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Traveling downstream, a boat can go 18km in 2 hours. Going upstream, it makes only 2/3 this distance in twice the time. What is the rate of the boat in still water, and what is the rate of the current? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #549575 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=549575\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r + c = 9kmph <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18km%2F%282hr%29 ALIGN=MIDDLE  ALT=\"18km%2F%282hr%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<u>r - c =  3kmph</u>       <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=12km%2F%284hr%29 ALIGN=MIDDLE  ALT=\"12km%2F%284hr%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2r = 12kmph <BR>\n" );
document.write( "r = 6kmph  and c = 3kmph <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9-6 ALIGN=MIDDLE  ALT=\"9-6\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );