document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=335517>Question 335517</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jeff can weed the garden in 4 hours by himself. His wife Brenda takes the same amount of time to weed the garden. After they have worked for 1 hour, their son, Rory helps them to finish the job in 1/2 hour. How long would it have taken Rory and Brenda to do this entire weeding job (start to finish) together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #240646 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=240646\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let work involved = 4 units,<BR>\n" );
document.write( "then J & B each work @ 1 unit/hr<BR>\n" );
document.write( "ie J+B = 2 <BR>\n" );
document.write( "in 1 hr they do 2 units of work<BR>\n" );
document.write( "2 more units remain<BR>\n" );
document.write( "J+B+R finish 2 units of work in 1/2 hr, @ 4units/hr<BR>\n" );
document.write( "so R works @ 2units/hr<BR>\n" );
document.write( "B+R will work @ 1+2 = 3 units/hr<BR>\n" );
document.write( "so they will take 4/3<BR>\n" );
document.write( "= 1 1/3 h<BR>\n" );
document.write( "= 1 h 20 m<BR>\n" );
document.write( " </SPAN>\n" );
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