document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1104644>Question 1104644</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If two people work at washing 5 cars and one can do all 5 cars on their own in 36 minutes and the other can do all 5 on their own in 42 minutes, how long does it take to wash all 5 working together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #719466 by </B><A HREF=/tutors/aboutme.mpl?userid=jorel1380><B>jorel1380(3719)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jorel1380><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=jorel1380><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=719466\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The first person does 5 cars in 36 minutes, or 5/36 car per minute. The second one  does 5/42 car per minute. Together,:<BR>\n" );
document.write( "5/36+5/42=5/n<BR>\n" );
document.write( "35/252+30/252=5/n<BR>\n" );
document.write( "35n+30n=1260<BR>\n" );
document.write( "n=1260/65=252/13 min. working together<BR>\n" );
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