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1). 18 litres2). 24 litres3). 32 litres4). 40 litres |
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Answer» LET the QUANTITY of the wine in the CASK originally be x litres Then, quantity of wine left in cask after 4 OPERATIONS = {x (1 – 8/x)?} litres ⇒ {X (1 – 8/x)?}/x = 16/81 ⇒ (1 – 8/x)? = (2/3)? ⇒ (X – 8)/x = 2/3 ⇒ 3x – 24 = 2x ∴ x = 24 litres |
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