document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=447932>Question 447932</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a boat goes downstream 72 kilometres in 3 hours and upstream 60 kilometres in 6 hours, the rate of the river and the rate of the boat in still water respectively are  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #308291 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=308291\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> boat speed = x mph<BR>\n" );
document.write( "current speed = y mph<BR>\n" );
document.write( "with stream speed = x+y<BR>\n" );
document.write( "d= 72<BR>\n" );
document.write( "72/(x+y)= 3<BR>\n" );
document.write( "divide by 3<BR>\n" );
document.write( "24/(x+y)=1<BR>\n" );
document.write( "x+y = 24............1<BR>\n" );
document.write( "..<BR>\n" );
document.write( "60/(x-y) = 6<BR>\n" );
document.write( "10/(x-y)=1<BR>\n" );
document.write( "x-y =10.............2\r<BR>\n" );
document.write( "\n" );
document.write( "add up (1) & (2)<BR>\n" );
document.write( "2x= 34<BR>\n" );
document.write( "x= 17 mph speed of boat<BR>\n" );
document.write( "current speed = 7 mph<BR>\n" );
document.write( "m.ananth@hotmail.ca </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );