document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=271639>Question 271639</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Jack usually mows his lawn in 3 hours.  Marilyn can mow the same lawn in 5 hours.  How much time would it take for them to mow the lawn together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #198818 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=198818\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Jack usually mows his lawn in 3 hours.  Marilyn can mow the same lawn in 5 hours.  How much time would it take for them to mow the lawn together?\r<BR>\n" );
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document.write( "JAck mows the lawn in 3 hours.\r<BR>\n" );
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document.write( "he does 1/3 of the job in 1 hour\r<BR>\n" );
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document.write( "Marilyn takes 5 hours . So she does 1/5th. job in 1 hour.\r<BR>\n" );
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document.write( "they together do 1/3  + 1/5 of the job in 1 hour.\r<BR>\n" );
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document.write( "= 8/15 of the job .\r<BR>\n" );
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document.write( "8/15 of the job they take 1 hour\r<BR>\n" );
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document.write( "so 1 job they take 15/8 hours \r<BR>\n" );
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document.write( "= 1.88 hours </SPAN>\n" );
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