document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=959786>Question 959786</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Through postal workers can sort of stack of mail in 10 minutes 15 minutes and 30 minutes respectively find out how long it takes them to sort them out if all three work together </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #586605 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=586605\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Three postal workers can sort a stack of mail in 10 minutes 15 minutes and 30 minutes respectively find out how long it takes them to sort them out if all three work together.<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "rate + rate + rate = together rate<BR>\n" );
document.write( "(1/10) + (1/15) + (1/30) = 1/x<BR>\n" );
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document.write( "450x + 300x + 150x = 4500<BR>\n" );
document.write( "900x = 4500<BR>\n" );
document.write( "x = 5 minutes (time for them to do the job together)<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );