document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=889078>Question 889078</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A contractor was engaged to finish 6km of railway line in 210 days; but after employing 120 men for 50 days he found that only 1.2km of line was completed. How many additional men must be engaged so that the work is completed within the given time. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #537876 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39629)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=537876\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What Happened:  120 men worked at each individual rate of r km per day for 50 days, finishing 1.2 km of railway.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=RT=J ALIGN=MIDDLE  ALT=\"RT=J\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=120%2Ar%2A50=1.2 ALIGN=MIDDLE  ALT=\"120%2Ar%2A50=1.2\"   DISABLED_style= \"max-width:90%; height:auto;\" > and notice this is not in units of \"JOBS\" but only in units of kilometers of rail track on the right, and kilometers per day and number of days on the left member.  The value for r can be found.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=1.2%2F%28120%2A50%29 ALIGN=MIDDLE  ALT=\"r=1.2%2F%28120%2A50%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=1%2F%28100%2A50%29 ALIGN=MIDDLE  ALT=\"r=1%2F%28100%2A50%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28r=1%2F5000%29 ALIGN=MIDDLE  ALT=\"highlight%28r=1%2F5000%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > kilometer/day for 1 man\r<BR>\n" );
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document.write( "Let n = how many additional men to add so that the remaining assigned unfinished railway can be done in the remaining expected days.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28n%2B120%29%2Ar%2A%28210-50%29=6-1.2 ALIGN=MIDDLE  ALT=\"%28n%2B120%29%2Ar%2A%28210-50%29=6-1.2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28%28n%2B120%29%281%2F5000%29%28210-50%29=6-1.2%29 ALIGN=MIDDLE  ALT=\"highlight%28%28n%2B120%29%281%2F5000%29%28210-50%29=6-1.2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "I left this unfinished so you see what is happening with the numbers.  Solve for n. </SPAN>\n" );
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