document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=375972>Question 375972</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A swimming pool can be filled by a large pipe in 4 hrs. and by a small pipe in 6 hrs. A third pipe can empty the pool in 3 hrs. How long would it take to fill the pool if all three pipes were open at the same time? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #267434 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=267434\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A swimming pool can be filled by a large pipe in 4 hrs. and by a small pipe in 6 hrs. A third pipe can empty the pool in 3 hrs. How long would it take to fill the pool if all three pipes were open at the same time?<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let x = time (hours) for all three pipe to fill pool<BR>\n" );
document.write( "then<BR>\n" );
document.write( "x(1/4 + 1/6 + 1/3) = 1<BR>\n" );
document.write( "Multiply both sides by 12:<BR>\n" );
document.write( "x(3 + 2 + 4) = 12<BR>\n" );
document.write( "x(9) = 12<BR>\n" );
document.write( "x = 12/9<BR>\n" );
document.write( "x = 4/3<BR>\n" );
document.write( "x = 1 and 1/3 hours<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x = 1 hour and 20 minutes<BR>\n" );
document.write( " </SPAN>\n" );
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