document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=733515>Question 733515</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Three machines are filling water bottles. The machines can fill the daily quota of water bottles in 12 h, 15 h, and 20 h, respectively. How long would it take to fill the daily quota of water bottles with all three machines working?<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 #448454 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=448454\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/12 + 1/15 + 1/20 = 1/t\r<BR>\n" );
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document.write( "5/60 + 4/60 + 3/60 = 1/t\r<BR>\n" );
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document.write( "(5+4+3)/60 = 1/t\r<BR>\n" );
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document.write( "12/60 = 1/t\r<BR>\n" );
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document.write( "1/5 = 1/t\r<BR>\n" );
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document.write( "1*t = 5*1\r<BR>\n" );
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document.write( "t = 5\r<BR>\n" );
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document.write( "So if all machines are working together (with no one machine hindering the other), then they will fill the quota in 5 hours. </SPAN>\n" );
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