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An inlet pipe can fill an empty pool with water in 3 hours,
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07 Feb 2020, 04:42
07 Feb 2020, 04:42
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An inlet pipe can fill an empty pool with water in 3 hours, and the pool’s outlet pipe can empty a full pool in 4 hours. The water flows at constant rates through both pipes regardless of the water level in the pool. If both pipes were inadvertently left open, what fraction of the pool would be filled exactly 2 hours after water began to flow into the empty pool?
(A) 1/12
(B) 1/6
(C) 1/4
(D) 1/3
(E) 1/2
(A) 1/12
(B) 1/6
(C) 1/4
(D) 1/3
(E) 1/2
Re: An inlet pipe can fill an empty pool with water in 3 hours,
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09 Feb 2020, 04:29
09 Feb 2020, 04:29
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Asif123 wrote:
An inlet pipe can fill an empty pool with water in 3 hours, and the pool’s outlet pipe can empty a full pool in 4 hours. The water flows at constant rates through both pipes regardless of the water level in the pool. If both pipes were inadvertently left open, what fraction of the pool would be filled exactly 2 hours after water began to flow into the empty pool?
(A) 1/12
(B) 1/6
(C) 1/4
(D) 1/3
(E) 1/2
(A) 1/12
(B) 1/6
(C) 1/4
(D) 1/3
(E) 1/2
Here,
** Total work = Rate * Time
Rate of water filled in empty tank = \(\frac{1}{3}\)
Rate of water emptied from the tank = \(\frac{1}{4}\)
Total work done, when both pipes were left open for exactly 2 hours = \((\frac{1}{3} - \frac{1}{4}) * 2 = \frac{1}{6}\)
***PLZ mention the source
Re: An inlet pipe can fill an empty pool with water in 3 hours,
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08 Jun 2022, 06:20
08 Jun 2022, 06:20
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
