document.write( "Question 252653: One pipe can fill a pool in 8 hours. The drain can empty it in 14 hours. With the pipe on and the drain open, how long will it take the pool to be filled? \n" ); document.write( "
Algebra.Com's Answer #184679 by edjones(8007)\"\" \"About 
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1/8 pool filled in 1 hour. 1/14 pool drained in 1 hr.
\n" ); document.write( "1/8 - 1/14
\n" ); document.write( "=7/56 - 4/56 = 3/56 pool filled in 1 hr.
\n" ); document.write( "56/3 hrs to fill the entire pool.
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