document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=948440>Question 948440</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Larry and Curly are trying to fill a sandbox with sand. Working alone, Larry can fill an empty <BR>\n" );
document.write( "sandbox in 4 hours, and Curly can do the same job in 5 hours. Moe is trying to empty the <BR>\n" );
document.write( "sandbox. Working alone, Moe can empty a full sandbox in 6 hours. If the sandbox is half <BR>\n" );
document.write( "full at the time Larry and Curly begin filling the sandbox and Moe begins emptying it, how <BR>\n" );
document.write( "many minutes will it take for the sandbox to be filled? Express your answer to the nearest <BR>\n" );
document.write( "whole number. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #578912 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=578912\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Larry fills one sand box in four hours or 1 box/4hrs= 1/4 box/hr<BR>\n" );
document.write( "Curly fills one sand box in five hours or 1 box/5hrs= 1/5 box/hr<BR>\n" );
document.write( "Moe empties one sand box in six hours or -1 box/6hrs= -1/6 box/hr<BR>\n" );
document.write( "All together:(Find common denominator and add)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1+box%2F4+hr%2B1+box%2F5+hr-1+box%2F6+hr ALIGN=MIDDLE  ALT=\"1+box%2F4+hr%2B1+box%2F5+hr-1+box%2F6+hr\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15+box%2F60hr%2B12box%2F60hr-10box%2F60hr ALIGN=MIDDLE  ALT=\"15+box%2F60hr%2B12box%2F60hr-10box%2F60hr\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=17box%2F60hr ALIGN=MIDDLE  ALT=\"17box%2F60hr\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "With half already full, 30/60 box remains to fill at the rate of 17/60 box/hr:<BR>\n" );
document.write( "(30/60 box)/(17/60 box/hr)=1.765 hrs=105.88 minutes<BR>\n" );
document.write( "ANSWER: With all three working, it will take 106 minutes to finish filling the last half of the sand box.<BR>\n" );
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