document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=625647>Question 625647</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A does a work in 20 days. A did for 28 days. Then b came. They together take 76 days to complete the 7 job. Find howmany days B complete a work. <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 #393910 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=393910\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Rewrite to show how I understand the problem<BR>\n" );
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document.write( "A does a work in 20 days. A worked for 28 days. <BR>\n" );
document.write( "Then B came. Working together, they take 76 days to complete 7 jobs.<BR>\n" );
document.write( " Find how many days it takes B to complete a work.<BR>\n" );
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document.write( "let b = time for B to do one job by himself<BR>\n" );
document.write( "let one completed job = 1<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%2828%2B76%29%29%2F20 ALIGN=MIDDLE  ALT=\"%28%2828%2B76%29%29%2F20\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=76%2Fb ALIGN=MIDDLE  ALT=\"76%2Fb\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 7<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=104%2F20 ALIGN=MIDDLE  ALT=\"104%2F20\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=76%2Fb ALIGN=MIDDLE  ALT=\"76%2Fb\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 7<BR>\n" );
document.write( "multiply by 20b<BR>\n" );
document.write( "104b + 20(76) = 20b(7)<BR>\n" );
document.write( "104b + 1520 = 140b<BR>\n" );
document.write( "1520 = 140b - 104b<BR>\n" );
document.write( "1520 = 36b<BR>\n" );
document.write( "b = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1520%2F36 ALIGN=MIDDLE  ALT=\"1520%2F36\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "b = 42.22 days to do one job alone\r<BR>\n" );
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