document.write( "Question 821930: With drain pipes A and B open, a swimming pool can be emptied in 1.5 hours. If drain pipe A can empty the pool in 3 hours, how long would it take to drain pipe B to empty the pool? \n" ); document.write( "
Algebra.Com's Answer #494923 by richwmiller(17219)\"\" \"About 
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1.5/3+1/x=1
\n" ); document.write( "1/2+1/x=1
\n" ); document.write( "1/x=1/2
\n" ); document.write( "x=2\r
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