document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=4749>Question 4749</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One person can do a job in 2 hours, Another can do the job in 3 hours, how long will it take if they do the job together.\r<BR>\n" );
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document.write( "What is the formula to solve this type of question?<BR>\n" );
document.write( "My attempts seem futile. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #2244 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=2244\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First, find out how much of the job each person can do in 1 hour.\r<BR>\n" );
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document.write( "Person A can do 1/2 of the job in 1 hour.<BR>\n" );
document.write( "Person B can do 1/3 of the job in 1 hour.\r<BR>\n" );
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document.write( "So, together, A and B can do 1/2 + 1/3 = 5/6 of the job in 1 hour.\r<BR>\n" );
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document.write( "Then multiply both sides by the reciprocal of 5/6 (that's 6/5) to get the whole job time.\r<BR>\n" );
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document.write( "Then A and B can do (6/5)(5/6) of the job in (6/5) of 1 hour.\r<BR>\n" );
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document.write( "6/5 of an hour is 1 hour and 12 minutes. </SPAN>\n" );
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