document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=536634>Question 536634</A>: <I><SPAN STYLE=\"word-break: break-all;\"> it take one pipe15 hours to empty a water tank while the second pipe requires 18 hours. if the pipe is opened for 7 hours and then closed when the second pipe is opened,how long will it take the second pipe to empty the water tank              pls email it to me johnreygayaso@yahoo.com  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #352483 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=352483\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Emptying the pool is one job								<BR>\n" );
document.write( "Pipe I	15	hours						<BR>\n" );
document.write( "It does 	  1/15	of the job in 1 	hour 					<BR>\n" );
document.write( "Pipe II	18	hours						<BR>\n" );
document.write( "It does 	  1/18	of thejob in 1 	hour 					<BR>\n" );
document.write( "								<BR>\n" );
document.write( "In	7      	hours	Pipe I	will do	  7/15	of the job  		<BR>\n" );
document.write( "Balance job =	1      	-	  7/15	=	  8/15			<BR>\n" );
document.write( "Pipe II does	  1/18	job	in  	1	hour 			<BR>\n" );
document.write( "To do 	  7/15	of the job  	it will take	  7/15	/	  1/18	*	1<BR>\n" );
document.write( "								<BR>\n" );
document.write( "=	8.4	hours						<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );