document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=791902>Question 791902</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a tank can be filled by one pipe in 20 minutes and it can be filled by a second pipe in 10 minutes. it can be drained by a third pipe in 12 minutes. if the tank is empty and the inlet pipes and the drain are opened, in how many hours will the tank be filled? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #479785 by </B><A HREF=/tutors/aboutme.mpl?userid=psbhowmick><B>psbhowmick(878)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=psbhowmick><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=psbhowmick><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=479785\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Suppose it will be filled in t minutes.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%2F20+%2B+t%2F10+-+t%2F12+=+1 ALIGN=MIDDLE  ALT=\"t%2F20+%2B+t%2F10+-+t%2F12+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283+%2B+6+%2B+5%29t%2F60+=+1 ALIGN=MIDDLE  ALT=\"%283+%2B+6+%2B+5%29t%2F60+=+1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=14t=60 ALIGN=MIDDLE  ALT=\"14t=60\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=60%2F14 ALIGN=MIDDLE  ALT=\"t=60%2F14\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "It will take 1/14th of an hour to fill the reserviour completely.\r<BR>\n" );
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document.write( "Cheers! </SPAN>\n" );
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