document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452536>Question 452536</A>: <I><SPAN STYLE=\"word-break: break-all;\"> By checking work records, a plumber finds that Raul can plumb a house in 48hr. Mira can do the same job in 36hr. How long would it take if they worked together? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311074 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=311074\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> change to how much they do per hour<BR>\n" );
document.write( "Raul does 1/48 of the job per hour.<BR>\n" );
document.write( "Mira does 1/36 per hour<BR>\n" );
document.write( "Now you can add them<BR>\n" );
document.write( "Together they do 1/48 + 1/36 = 36/1728 + 48/1728 = 84/1728 per hour<BR>\n" );
document.write( "--> 1728/84 hours per job<BR>\n" );
document.write( "= 144/7 hours per job<BR>\n" );
document.write( "=~ 20.57 hours<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );