document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=730475>Question 730475</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One pump can fill a water cistern twice as fast as a second pump. Working together, the two pumps can fill the cistern in 5 hours. Find how long it takes each pump to fill the cistern when working alone </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #446720 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=446720\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  One pump can fill a water cistern twice as fast as a second pump.<BR>\n" );
document.write( " Working together, the two pumps can fill the cistern in 5 hours.<BR>\n" );
document.write( " Find how long it takes each pump to fill the cistern when working alone<BR>\n" );
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document.write( "Let t = time required by one pump alone<BR>\n" );
document.write( "then<BR>\n" );
document.write( "2t = time required by the other pump<BR>\n" );
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document.write( "Let the completed job = 1 (a full cistern)<BR>\n" );
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document.write( "A typical shared work equation<BR>\n" );
document.write( "Each will do a fraction of the work, the two fractions = 1<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2Ft ALIGN=MIDDLE  ALT=\"5%2Ft\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F%282t%29 ALIGN=MIDDLE  ALT=\"5%2F%282t%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 1 <BR>\n" );
document.write( "multiply by 2t, resulting in<BR>\n" );
document.write( "2(5) + 5 = 2t<BR>\n" );
document.write( "10 + 5 = 2t<BR>\n" );
document.write( "t = 15/2<BR>\n" );
document.write( "t = 7.5 hrs for one pump<BR>\n" );
document.write( "you can find the time for the other pump </SPAN>\n" );
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