document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=670509>Question 670509</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two pipes are attached to a 540 gal tank.  One pipe can fill the tank in 10 hours.  The other can fill the tank in 12 hours.  Assume the tank is empty, how long will it take to fill the tank if both pipes are used?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #416957 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=416957\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> One pipe takes 10 hour to fill 540 gal<BR>\n" );
document.write( "so in 1 hour it can fill 54 gal<BR>\n" );
document.write( "second pipe can fill in 12 hours\r<BR>\n" );
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document.write( "so it can fill 540/12 = 45 gal/hour\r<BR>\n" );
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document.write( "Together they fill 54+45 = 99 gal/hour\r<BR>\n" );
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document.write( "tank = 540 gal\r<BR>\n" );
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document.write( "so they will take 540/99 = 5.44  hours </SPAN>\n" );
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