document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=448309>Question 448309</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A milk tank can be filled by pip A in 6 hours, by pipe B in 8 hours and by pipe C in 12 hours.  how long will it take all three pipes working together to fill the tank? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #853346 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13258)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=853346\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Tutor @ikleyn has provided a response showing a solution by the method that is usually taught.<br><BR>\n" );
document.write( "Here is a solution using an alternative method.<br><BR>\n" );
document.write( "Consider the least common multiple of the three given times, which is 24 hours.<br><BR>\n" );
document.write( "In 24 hours...<BR>\n" );
document.write( "pipe A could fill the tank 24/6 = 4 times;<BR>\n" );
document.write( "pipe B could fill the tank 24/8 = 3 times; and<BR>\n" );
document.write( "pipe C could fill the tank 24/12 = 2 times<br><BR>\n" );
document.write( "So in 24 hours the three pipes could fill the tank 4+3+2 = 9 times.<br><BR>\n" );
document.write( "That means the number of hours required for the three pipes together to fill the tank one time is 24/9 = 8/3.<br><BR>\n" );
document.write( "ANSWER: 8/3 hours, or 2 2/3 hours<r><BR>\n" );
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