document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=156779>Question 156779</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jack usually mows his lawn in 5 hours.  Mary can mow the same yard in 7 hours.  how much time would it take for them to mow the lawn together?\r<BR>\n" );
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document.write( "they could mow the lawn in ???? hours if worked together. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #115598 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=115598\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jack does 1/5 job in 1 hr.<BR>\n" );
document.write( "Mary does 1/7 job in 1 hr.<BR>\n" );
document.write( "1/5 + 1/7<BR>\n" );
document.write( "=7/35 + 5/35 = 12/35 of job is done in 1 hr together<BR>\n" );
document.write( "35/12 hrs it takes them both to do the job or 2 hrs 11/12 hrs or 2 hrs 55 min.<BR>\n" );
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document.write( "Ed<BR>\n" );
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