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A closed rectangular tank contains a certain amount of water
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23 Mar 2019, 10:25
23 Mar 2019, 10:25
Expert Reply
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Question Stats:
93% (00:55) correct
6% (01:15) wrong based on 15 sessions
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A closed rectangular tank contains a certain amount of water. When the tank is placed on its 3 ft by 4 ft side, the height of the water in the tank is 5 ft. When the tank is placed on another side of dimensions 4 ft by 5 ft, what is the height, in feet, of the surface of the water above the ground?
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
(A) 2
(B) 3
(C) 4
(D) 5
(E) 6
Re: A closed rectangular tank contains a certain amount of water
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23 Mar 2019, 20:55
23 Mar 2019, 20:55
2
The key is to understand that the volume of a solid remains the same no matter how it is placed. The dimension may change as one side may become length at one time, breadth another time and height yet another time.
Initially when the length and breadth of the solid was 3 and 4, its height was 5. Giving a volume of 60.
Now when the length and breadth are 4 and 5 its height has to be 3 in order to have the same volume of 60.
Initially when the length and breadth of the solid was 3 and 4, its height was 5. Giving a volume of 60.
Now when the length and breadth are 4 and 5 its height has to be 3 in order to have the same volume of 60.
Re: A closed rectangular tank contains a certain amount of water
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14 Aug 2022, 03:16
14 Aug 2022, 03:16
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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).
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