document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1136385>Question 1136385</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Problem Page<BR>\n" );
document.write( "Working together, two pumps can drain a certain pool in 3 hours. If it takes the older pump 13 hours to drain the pool by itself, how long will it take the newer pump to drain the pool on its own? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #754153 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52814)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=754153\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
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document.write( "Working together, two pumps fill  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3 ALIGN=MIDDLE  ALT=\"1%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >  of the pool per hour.\r\n" );
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document.write( "Older pump fills  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F13 ALIGN=MIDDLE  ALT=\"1%2F13\"   DISABLED_style= \"max-width:90%; height:auto;\" >  of the pool per hour.\r\n" );
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document.write( "Hence, new pump  fills  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F3+-+1%2F13 ALIGN=MIDDLE  ALT=\"1%2F3+-+1%2F13\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13%2F39+-+3%2F39 ALIGN=MIDDLE  ALT=\"13%2F39+-+3%2F39\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10%2F39 ALIGN=MIDDLE  ALT=\"10%2F39\"   DISABLED_style= \"max-width:90%; height:auto;\" >  of the pool per hour.\r\n" );
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document.write( "It means that this pump requires  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=39%2F10 ALIGN=MIDDLE  ALT=\"39%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours = 3.9 hours = 3 hours and 54 minutes to fill the pool working alone.   <ANSWER</U>\r\n" );
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document.write( "Solved.\r<BR>\n" );
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document.write( "It is a standard and typical joint work problem.\r<BR>\n" );
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document.write( "There is a wide variety of similar solved joint-work problems with detailed explanations in this site. &nbsp;See the lessons\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=http://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Word-problems-WORKING-TOGETHER-by-Fractions.lesson>Using Fractions to solve word problems on joint work</A> \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=http://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Solving-more-complicated-word-problems-on-joint-work.lesson>Solving more complicated word problems on joint work</A> \r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Rate-of-work-word-problems/Selected-problems-from-the-archive-on-joint-work-word-problems.lesson>Selected joint-work word problems from the archive</A> \r<BR>\n" );
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document.write( "Read them and get be trained in solving joint-work problems.\r<BR>\n" );
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document.write( "Also, &nbsp;you have this free of charge online textbook in ALGEBRA-I in this site\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson>ALGEBRA-I - YOUR ONLINE TEXTBOOK</A>.\r<BR>\n" );
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document.write( "The referred lessons are the part of this textbook under the topic <BR>\n" );
document.write( "\"<U>Rate of work and joint work problems</U>\" &nbsp;of the section &nbsp;\"<U>Word problems</U>\".\r<BR>\n" );
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document.write( "Save the link to this online textbook together with its description\r<BR>\n" );
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document.write( "Free of charge online textbook in ALGEBRA-I<BR>\n" );
document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r<BR>\n" );
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document.write( "to your archive and use it when it is needed.\r<BR>\n" );
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