document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=770917>Question 770917</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B dad to leave and A alone completed the remaining work. The whole work was completed in_____. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #469852 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=469852\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A's rate of working:<BR>\n" );
document.write( "( 1 job ) / ( 15 days )<BR>\n" );
document.write( "B's rate of working:<BR>\n" );
document.write( "{ 1 job ) / ( 10 days )<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "What fraction of the job did they get<BR>\n" );
document.write( "done in 2 days? Let the fraction = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=k ALIGN=MIDDLE  ALT=\"k\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F15+%2B+1%2F10+=+k%2F2+ ALIGN=MIDDLE  ALT=\"+1%2F15+%2B+1%2F10+=+k%2F2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Multiply both sides by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+30+ ALIGN=MIDDLE  ALT=\"+30+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2+%2B+3+=+15k+ ALIGN=MIDDLE  ALT=\"+2+%2B+3+=+15k+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+k+=+5%2F15+ ALIGN=MIDDLE  ALT=\"+k+=+5%2F15+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+k+=+1%2F3+ ALIGN=MIDDLE  ALT=\"+k+=+1%2F3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "That means there is 2/3 of the job left to finish<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "A working alone:<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+ ALIGN=MIDDLE  ALT=\"+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = time in days to finish job<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1%2F15+=+%28+2%2F3%29+%2F+t+ ALIGN=MIDDLE  ALT=\"+1%2F15+=+%28+2%2F3%29+%2F+t+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t%2A%28+1%2F15+%29+=+2%2F3+ ALIGN=MIDDLE  ALT=\"+t%2A%28+1%2F15+%29+=+2%2F3+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+15%2A%28+2%2F3+%29+ ALIGN=MIDDLE  ALT=\"+t+=+15%2A%28+2%2F3+%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+t+=+10+ ALIGN=MIDDLE  ALT=\"+t+=+10+\"   DISABLED_style= \"max-width:90%; height:auto;\" > days<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "The whole work was completed in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2+%2B+10+=+12+ ALIGN=MIDDLE  ALT=\"+2+%2B+10+=+12+\"   DISABLED_style= \"max-width:90%; height:auto;\" > days\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );