document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=564907>Question 564907</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Albert can mow a lawn in 40 minutes, while his cousin Vinnie can mow the same lawn in one hour. How long would it take to mow the lawn if Albert and Vinnie 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 #365545 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=365545\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Albert's mowing rate = 1 lawn/40 min<BR>\n" );
document.write( "Vinnie's mowing rate = 1 lawn/60 min<BR>\n" );
document.write( "Working together their rate is<BR>\n" );
document.write( "r = 1/40 + 1/60 [lawns/min]<BR>\n" );
document.write( "r = 3/120 + 2/120 = 5/120 lawns/min<BR>\n" );
document.write( "So the number of minutes per lawn is 120/5 = 24 mins. </SPAN>\n" );
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