document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1207767>Question 1207767</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A 5-horsepower (hp) pump can empty a pool in 5 hours.A smaller, 2-hp pump empties the same pool in 8 hours. The pumps are used together to begin emptying this pool.After two hours, the 2-hp pump breaks down. How long will it take the larger pump to empty the pool? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #845826 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=845826\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "A 5-horsepower (hp) pump can empty a pool in 5 hours.A smaller, 2-hp pump empties the same pool in 8 hours. The pumps are used together to begin emptying this pool.After two hours, the 2-hp pump breaks down. How long will it take the larger pump to empty the pool?\r<BR>\n" );
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document.write( "Consider emptying the pool is 1 job\r<BR>\n" );
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document.write( "A 5-horsepower (hp) pump can empty a pool in 5 hours. rate of Emptying = 1/5  of the job\r<BR>\n" );
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document.write( "A smaller, 2-hp pump empties the same pool in 8 hours.1/8  of the job\r<BR>\n" );
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document.write( " The pumps are used together for two hours \r<BR>\n" );
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document.write( "2(1/5  +1/8) of the job is done in two hours =26/40 = 13/20\r<BR>\n" );
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document.write( "Balance job = 1- 13/20 = 7/20 \r<BR>\n" );
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document.write( "1/5 of job the 5Hp does in 1 hour<BR>\n" );
document.write( "7/20 of the job it will do in  (7/20)/ (1/5)= 35/20 = 7/4  hours\r<BR>\n" );
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document.write( " It will take the 5-hp pump an additional 1.75 hours to empty the pool after the 2-hp pump breaks down.\r<BR>\n" );
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