document.write( "Question 1053605: An inlet pipe on a swimming pool can be used to fill the pool in 22 hours. The drain pipe can be used to empty the pool in 33 hours. If the pool is 13 filled and then the inlet pipe and drain pipe are opened, how long from that time will it take to fill the pool? \n" ); document.write( "
Algebra.Com's Answer #668794 by Boreal(15235)\"\" \"About 
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In one hour 1/22 of the pool can be filled and 1/33 of it can be emptied.
\n" ); document.write( "Every hour, then (1/22)-(1/33) of the pool is filled, or (33-22)/726=11/726, or 1/66 of the pool.
\n" ); document.write( "2/3 more of the pool needs to be filled.
\n" ); document.write( "This is (2/3)/1/66)=(132/3)=44 hours.
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