document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=205854>Question 205854</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Kathy and Ken work in a textbook warehouse. Kathy can fill an order of 100 books in 40 min. Ken can fill the same order in 60 min. How long would it take them, working together, to fill the order? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #155492 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=155492\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Kathy and Ken work in a textbook warehouse. Kathy can fill an order of 100 books in 40 min. Ken can fill the same order in 60 min. How long would it take them, working together, to fill the order?<BR>\n" );
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document.write( "Kathy does 1/40 order per minute<BR>\n" );
document.write( "Ken does 1/60 order per minute.<BR>\n" );
document.write( "Together = 1/40 + 1/60 per minute<BR>\n" );
document.write( "= 5/120 per minute<BR>\n" );
document.write( "--> 24 minutes per order.<BR>\n" );
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document.write( "A shortcut is product/sum<BR>\n" );
document.write( "40*60/(40+60) = 2400/100<BR>\n" );
document.write( "= 24 minutes </SPAN>\n" );
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