document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=307837>Question 307837</A>: <I><SPAN STYLE=\"word-break: break-all;\"> melanie can do a job in 4 hours. kim can do the same job in 6 hours. if they work together, how long will it take to complete the job? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220156 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=220156\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> melanie can do a job in 4 hours<BR>\n" );
document.write( "so she can do 1/4 of the job in 1 hour\r<BR>\n" );
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document.write( "Kim does the same job in 6 hours<BR>\n" );
document.write( "So he can do 1/6 job in 1 hour\r<BR>\n" );
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document.write( "Together they can do 1/4 + 1/6 of the job in 1 hour\r<BR>\n" );
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document.write( "1/4 + 1/6 <BR>\n" );
document.write( "= 3+2 / 12<BR>\n" );
document.write( "= 5/12 job in one hour\r<BR>\n" );
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document.write( "so 1 job they will do together  in 12/5 hours\r<BR>\n" );
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document.write( "= 2.4 hours  </SPAN>\n" );
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