document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=355113>Question 355113</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An inlet pump can fill a reservoir in 10 hours. An outlet pump can drain the same reservoir in 30 hours. How long would it take to fill the reservoir if both pumps were in use at the same time? Thank You </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #253684 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=253684\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> inlet pump fills in 10 hours<BR>\n" );
document.write( "so it does 1/10 of the job in 1 hour.<BR>\n" );
document.write( "outlet pump takes 30 hours<BR>\n" );
document.write( "so it can do 1/30 of the job in 1 hour.<BR>\n" );
document.write( "..<BR>\n" );
document.write( "when both  are open they will do 1/10 -1/30 of the job in 1 hour<BR>\n" );
document.write( "=2/30 = 1/15 of the job in one hour.<BR>\n" );
document.write( "so the tank will fill in 15 hours when both are on.<BR>\n" );
document.write( "....<BR>\n" );
document.write( "m.ananth@hotmail.ca </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );