document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=248883>Question 248883</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If A can perform a task in 24 hours and B can perform the same task in 40 hours, how long does it take A and B working together? show equation and solve </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #719165 by </B><A HREF=/tutors/aboutme.mpl?userid=amalm06><B>amalm06(224)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=amalm06><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=amalm06><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=719165\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A can finish 1/24th of the task in 1 hr\r<BR>\n" );
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document.write( "B can finish 1/40th of the task in 1 hr\r<BR>\n" );
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document.write( "Let 1 denote the full task\r<BR>\n" );
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document.write( "Then (1/24 + 1/40)(t)=1, where t denotes the time spent working together\r<BR>\n" );
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document.write( "Multiply by the LCM:\r<BR>\n" );
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document.write( "(5+3)t=120\r<BR>\n" );
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document.write( "8t=120\r<BR>\n" );
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document.write( "t=15 hr (Answer)  </SPAN>\n" );
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