Is the tankbeing emptied or filled ? I : The capacity of the : DS Archive
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# Is the tankbeing emptied or filled ? I : The capacity of the

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Manager
Joined: 28 Jan 2006
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Is the tankbeing emptied or filled ? I : The capacity of the [#permalink]

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20 Aug 2006, 04:51
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Is the tankbeing emptied or filled ?
I : The capacity of the tank is 10 litres and it contains 5 litres.
II : There is a leak that empties 10% of the water in the tank very hour and there is a inlet pipe that adds water equivalent to 10% of the unused capacity of the tank every hour.

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shinewine

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20 Aug 2006, 06:54
I think C is correct answer
(1) only tells nothing
(2) if less than half of the tank has been filled so the tank is being filled
but if more than half of the tank has been filled so the tank is being emptied.
(1,2) together we can say that the level of water remains the same after every hours.
But i feels this quest still a controversal one.
VP
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20 Aug 2006, 08:49
V =cap. of tank
Vc = current water in tank

S1: V = 10lts, Vc = 5lts

Not sufficient.

S2:
Rleak = 0.1 x Vc
Radd = 0.1 x (V-Vc)

Not sufficient.

S1 & S2:
V = 10lts, Vc = 5lts
Rleak = 0.1 x 5 = 0.5 lts/hr

Radd = 0.1 x 5 = 0.5 lts/hr

As Radd = Rleak not being emptied or being filled.

Answer: E/C (depending on how you want to answer this question).

I would go for E.
CEO
Joined: 20 Nov 2005
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Schools: Completed at SAID BUSINESS SCHOOL, OXFORD - Class of 2008
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20 Aug 2006, 15:47
Though I got C but its not a good question.
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SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008

20 Aug 2006, 15:47
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# Is the tankbeing emptied or filled ? I : The capacity of the

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