document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=672261>Question 672261</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Maria takes 9 days to complete a piece of work.John takes 3 days to complete the same work and Linda completes it in 3 days.How long will it take if all of them 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 #417866 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=417866\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Maria takes 9 days to complete a piece of work.John takes 3 days to complete the same work and Linda completes it in 3 days.How long will it take if all of them work together?<BR>\n" );
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document.write( "Maria's rate = 1/9 job/day<BR>\n" );
document.write( "John's rate = 1/3 job/day<BR>\n" );
document.write( "Linda's rate = 1/3 job/day<BR>\n" );
document.write( "Together rate = 1/x job/day<BR>\n" );
document.write( "=============================<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "rate + rate + rate = together rate<BR>\n" );
document.write( "1/9 + 1/3 + 1/3 = 1/x<BR>\n" );
document.write( "x + 3x + 3x = 9<BR>\n" );
document.write( "7x = 9<BR>\n" );
document.write( "x = 9/7 = 1 2/7 days (time 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" );