document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=236888>Question 236888</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jim can fill a pool using buckets of water in 30 minutes and Sue can do the same job in 45 minutes, Tony can do the same job in 90 minutes.  How long would it take them to do it together.   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #174242 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=174242\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jim can fill a pool using buckets of water in 30 minutes and Sue can do the same job in 45 minutes, Tony can do the same job in 90 minutes. How long would it take them to do it together. <BR>\n" );
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document.write( "For this type of problem, you have to use the reciprocals.<BR>\n" );
document.write( "Jim does 1/30 of the pool per minute.<BR>\n" );
document.write( "Sue does 1/45<BR>\n" );
document.write( "Tony does 1/90<BR>\n" );
document.write( "Add those.<BR>\n" );
document.write( "1/30 + 1/45 + 1/90 = 6/90 pools per minute = 1/15<BR>\n" );
document.write( "--> 15 minutes per pool<BR>\n" );
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