document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=315317>Question 315317</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 hours, 15 hours and 20 hours respectively. How long would it take to fill the daily quota of water bottles with all three machines working together. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #225635 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=225635\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/12+1/15+1/20=1/x (LCD=60)<BR>\n" );
document.write( "(5+4+3)/60=1/x<BR>\n" );
document.write( "12/60=1/5<BR>\n" );
document.write( "1/5=1/x<BR>\n" );
document.write( "x=5 hours to fill the quota whan all three machines are used.\r<BR>\n" );
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