document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=694639>Question 694639</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A cruise boat travels 12 miles downstream in 3 hours and returns upstream in 6 hours. Find the rate of the stream. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #428109 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=428109\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hint: \r<BR>\n" );
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document.write( "Let x = speed of boat (without the stream) and c = speed of the current of the stream\r<BR>\n" );
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document.write( "Downstream:\r<BR>\n" );
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document.write( "d = rt\r<BR>\n" );
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document.write( "12 = (x - c)*3\r<BR>\n" );
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document.write( "Upstream:\r<BR>\n" );
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document.write( "d = rt\r<BR>\n" );
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document.write( "12 = (x + c)*6 </SPAN>\n" );
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