document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=611030>Question 611030</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A can mow a lawn in 130 minutes, B takes 100 minutes and C takes 150 minutes. How long will it take all three, if they work together mowing the same lawn? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #384764 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=384764\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">     A can mow a lawn in 130 minutes, B takes 100 minutes and C takes 150 minutes. How long will it take all three, if they work together mowing the same lawn?<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let x = time (minutes) for all three<BR>\n" );
document.write( "then<BR>\n" );
document.write( "x(1/130 + 1/100 + 1/150) = 1<BR>\n" );
document.write( "multiplying both sides by 10:<BR>\n" );
document.write( "x(1/13 + 1/10 + 1/15) = 10<BR>\n" );
document.write( "multiplying both sides by 390:<BR>\n" );
document.write( "x(30 + 39 + 26) = 3900<BR>\n" );
document.write( "x(95) = 3900<BR>\n" );
document.write( "x = 41.1 minutes<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );