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# A cask initially contains pure alcohol up to the brim. The c

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A cask initially contains pure alcohol up to the brim. The c [#permalink]  14 Apr 2019, 10:29
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66% (48:50) correct 33% (00:00) wrong based on 3 sessions
A cask initially contains pure alcohol up to the brim. The cask can be emptied by removing exactly 5 liters at a time . Each time this is done, the cask must be filled back to the brim with water. The capacity of the cask is 15 liters. When the cask is completely emptied and filled back to the brim two times, what is the ratio of alcohol to water in the cask?

(A) 1 : 2

(B) 2 : 1

(C) 1 : 1

(D) 4 : 5

(E) 5 : 4
[Reveal] Spoiler: OA

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A cask initially contains pure alcohol up to the brim. The c   [#permalink] 14 Apr 2019, 10:29
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