document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=535966>Question 535966</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How long will it take to fill a reservoir with intake pipes A and B.If the reservoir can be filled by A alone in 5 days and B alone in 3 days?<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 #352038 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=352038\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Pipe A can do it in 5 days, so it does 1/5 per day.<BR>\n" );
document.write( "Pipe B can do it in 3 days, so it does 1/3 per day.<BR>\n" );
document.write( "x = number of days working together.<BR>\n" );
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document.write( "(1/5+1/3)*x = 1 full reservoir<BR>\n" );
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document.write( "(3/15 + 5/15)*x = 1<BR>\n" );
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document.write( "8/15 * x = 1<BR>\n" );
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document.write( "8x = 15<BR>\n" );
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document.write( "x = 15/8 = 1 7/8 days to fill the reservoir working together.<BR>\n" );
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document.write( "To check, determine how much of the job each can do in 15/8 days.<BR>\n" );
document.write( "1/5*15/8 = 3/8<BR>\n" );
document.write( "1/3*15/8 = 5/8<BR>\n" );
document.write( "3/8 + 5/8 = 1<BR>\n" );
document.write( "Correct. </SPAN>\n" );
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