SOLUTION: It takes 16 minutes to fill a tub with a stopper. It takes 20 minutes to empty a tub without a stopper. How long does it take to fill a tub without a stopper?
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Question 570425: It takes 16 minutes to fill a tub with a stopper. It takes 20 minutes to empty a tub without a stopper. How long does it take to fill a tub without a stopper?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
in the 16 min that it normally takes to fill, 4/5 (16/20) of the tub has drained
so it takes 16 min to fill 1/5 of the tub
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