document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=202142>Question 202142</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A tank can be filled by one inlet pipe in 15 minutes . it takes an outlet pipe 75 minutes to drain the tank. if the outlet pipe is left open by accident, how long would it take to fill the tank ? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #152402 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=152402\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=amount of time it takes to fill the tank when both pipes are working<BR>\n" );
document.write( "Then the tank fills at the rate of 1/x tank per min with both pipes working\r<BR>\n" );
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document.write( "The tank fills at the rate of 1/15 tank per min with the inlet pipe<BR>\n" );
document.write( "The tank empties at the rate of 1/75 tank per min with the outlet pipe<BR>\n" );
document.write( "So, our equation to solve is:<BR>\n" );
document.write( "1/15 - 1/75=1/x or<BR>\n" );
document.write( "5/75 - 1/75=1/x<BR>\n" );
document.write( "4/75=1/x<BR>\n" );
document.write( "4x=75<BR>\n" );
document.write( "x=18.75 min\r<BR>\n" );
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document.write( "CK<BR>\n" );
document.write( "(4/75)*18.75=75/75=1 (1 tank, that is)\r<BR>\n" );
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document.write( "Hope this helps---ptaylor </SPAN>\n" );
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