SOLUTION: It takes 15 minutes for a faucet to fill up a bathtub, but the drain takes 20 minutes to drain it.Suppose a person leaves the drain open and turns on the faucet. How long will it t
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-> SOLUTION: It takes 15 minutes for a faucet to fill up a bathtub, but the drain takes 20 minutes to drain it.Suppose a person leaves the drain open and turns on the faucet. How long will it t
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Question 1069201: It takes 15 minutes for a faucet to fill up a bathtub, but the drain takes 20 minutes to drain it.Suppose a person leaves the drain open and turns on the faucet. How long will it take for the tub to fill than? Answer by ikleyn(52787) (Show Source):
The faucet fills {{1/15}}} of the bathtub volume each minute.
The drain release of the bathtub volume each minute.
The net balance is = = of the bathtub volume per minutes.
Hence, it will take 60 minutes = 1 hour to fill the bathtub if both faucet and drain are turned on.
