document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1117256>Question 1117256</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Working together, two pumps can drain a certain pool in <BR>\n" );
document.write( "3\r<BR>\n" );
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document.write( "hours. If it takes the older pump <BR>\n" );
document.write( "12\r<BR>\n" );
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document.write( "hours to drain the pool by itself, how long will it take the newer pump to drain the pool on its own? \r<BR>\n" );
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document.write( "Do not do any rounding. <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 #732266 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=732266\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Working together, two pumps can drain a certain pool in 3 <BR>\n" );
document.write( "hours. If it takes the older pump 12 hours to drain the pool by itself, <BR>\n" );
document.write( "How long will it take the newer pump to drain the pool on its own? <BR>\n" );
document.write( "Do not do any rounding.<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "together rate = 1/3 job/hr<BR>\n" );
document.write( "older pump rate = 1/12 job/hr<BR>\n" );
document.write( "newer pump rate = 1/x job/hr<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "1/x + 1/12 = 1/3<BR>\n" );
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document.write( "12 + 3x = 4x<BR>\n" );
document.write( "x = 12 hrs (time for the newer pump)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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