document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=908456>Question 908456</A>: <I><SPAN STYLE=\"word-break: break-all;\"> P can do a  piece of work in 20 days and Q in 24 days. find how much time will they take to complete the work if they work alternately starting with P ?? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #551066 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=551066\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/a+1/b=1/x<BR>\n" );
document.write( "1/20+1/24=1/x<BR>\n" );
document.write( "24/480+20/480=1/x<BR>\n" );
document.write( "44/480=1/x<BR>\n" );
document.write( "x=480/44<BR>\n" );
document.write( "x=10.9090909 days working together\r<BR>\n" );
document.write( "\n" );
document.write( "Double the time if they don't work at the same time </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );