document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=38274>Question 38274</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Doug can deliver his pspers in 45 minutes. If Meg helps, they can finish in 20 minutes. How long will it take Meg to work alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #23745 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><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=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=23745\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The normal equation for this kind of equation is<BR>\n" );
document.write( "t/A + t/B = 1<BR>\n" );
document.write( "where t is the time working together<BR>\n" );
document.write( "A is the time it takes the first person working alone<BR>\n" );
document.write( "B is the time it takes the second person working alone<BR>\n" );
document.write( "and the 1 represents one whole job to do...<BR>\n" );
document.write( "Now plug in and solve for B<BR>\n" );
document.write( "20/45 + 20/B = 1<BR>\n" );
document.write( "multiply all by 45B to clear fractions<BR>\n" );
document.write( "20B + 900 = 45B<BR>\n" );
document.write( "900 = 25B<BR>\n" );
document.write( "B = 36 minutes </SPAN>\n" );
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