document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1203763>Question 1203763</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes 20 men 60 days to complete a building work.how many days longer would it take 15 men, assuming that they all work at the same rate (formula method)<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #839596 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=839596\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "I don't know exactly what method you are calling the \"formula method\"....  But simple logical reasoning can find the answer with far less work than with any formal algebra.<br><BR>\n" );
document.write( "15 men working instead of 20 is 15/20 = 3/4 as many men, so to complete the job requires 4/3 as many day.<br><BR>\n" );
document.write( "4/3 of 60 days is 80 days, which is 20 days more than 60.<br><BR>\n" );
document.write( "ANSWER: 20 more days<br><BR>\n" );
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