document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1068121>Question 1068121</A>: <I><SPAN STYLE=\"word-break: break-all;\"> By checking work records, a carpenter finds that Jane can build a small shed in 12 hours.  Antoine can do the same job in 16 hours.  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 #683287 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=683287\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> By checking work records, a carpenter finds that Jane can build a small shed in 12 hours. Antoine can do the same job in 16 hours. How long would it take if they worked together? <BR>\n" );
document.write( "------<BR>\n" );
document.write( "Let \"together\" time be x hr/job<BR>\n" );
document.write( "Invert that to get rate = (1/x) job/hr<BR>\n" );
document.write( "-------------------------<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "rate + rate = together rate<BR>\n" );
document.write( "1/12 + 1/16 = 1/x<BR>\n" );
document.write( "16x + 12x = 12*16<BR>\n" );
document.write( "28x = 192<BR>\n" );
document.write( "x = 6.86 hrs = 6hrs 51 min 36 sec<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "------------------ </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );