allery8 L is drawn from a full cask of pure wine and replaced by water. After four such steps wine to water is 16:65. Capacity?
A24 litres
B32 litres
C40 litres
D36 litres
Answer & Solution
Correct answer: A. 24 litres
Wine fraction is ((V - 8)/V)^4 = 16/81, so (V - 8)/V = 2/3 and V = 24 litres.
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