document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=950091>Question 950091</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Working alone, Carlos can oil the lanes in a bowling alley in five hours. Jenny can oil the same lanes in nine hours. If they work together how long would it take them? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #580095 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=580095\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Carlos oils all lanes/5 hrs= 1/5 of the lanes/hr.<BR>\n" );
document.write( "Jenny oils all lanes/9 hrs=1/9 lanes per hour.<BR>\n" );
document.write( "Together they oil 1/5 per hr+1/9 per hr=9/45 per hr+ 5/45 per hr=14/45 lanes per hr=0.311=31.1% of all lanes per hour<BR>\n" );
document.write( "To do all lanes  1/0.311=3.21 hrs ANSWER: Together it takes Carlos and Jenny 3.21 hours to oil all the lanes. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );