document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=373144>Question 373144</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two paper hangers work at different rates. The first worker can wallpaper a wall in 2 hours. The second takes 3 hours to wallpaper the same wall. How long would it take the two workers working together to paper the wall? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #265662 by </B><A HREF=/tutors/aboutme.mpl?userid=CharlesG2><B>CharlesG2(834)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=CharlesG2><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=265662\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Two paper hangers work at different rates. The first worker can wallpaper a wall in 2 hours. The second takes 3 hours to wallpaper the same wall. How long would it take the two workers working together to paper the wall?\r<BR>\n" );
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document.write( "total time = (1 job)/((1 job)/(time for A) + (1 job)/(time for B))<BR>\n" );
document.write( "units: hrs = job/(job/hrs + job/hrs) --> hrs = job * hrs/job = hrs<BR>\n" );
document.write( "time = 1/(1/2 + 1/3)<BR>\n" );
document.write( "time = 1/(3/6 + 2/6)<BR>\n" );
document.write( "time = 1/(5/6)<BR>\n" );
document.write( "time = 6/5 hrs<BR>\n" );
document.write( "time = 1.2 hrs working together to paper the wall\r<BR>\n" );
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