document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=609393>Question 609393</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A can do a certain job in 40days which b alone can do it in 30 days .A started the work and was joined by after 19 days .In how many days was the work completed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #383699 by </B><A HREF=/tutors/aboutme.mpl?userid=flame8855><B>flame8855(424)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=flame8855><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=flame8855><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=383699\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> rate (A)= 1/40<BR>\n" );
document.write( "Rate (B)= 1/30<BR>\n" );
document.write( "if together = 1/40+1/30 = 7/120=7/120\r<BR>\n" );
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document.write( "for 19 days\r<BR>\n" );
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document.write( "19/40 will be done and only 21/40 will be left\r<BR>\n" );
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document.write( " 7x/120=21/40<BR>\n" );
document.write( "x= 9<BR>\n" );
document.write( "total days = 19+9=28 days\r<BR>\n" );
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document.write( " </SPAN>\n" );
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