Question

A 65-litre mixture contains only water and oil in the ratio 3:2, respectively. If 35 litres of the mixture is replaced with the same quantity of oil, then find the quantity of oil in the final mixture.

A 40 litres Correct Answer Incorrect Answer
B 45 litres Correct Answer Incorrect Answer
C 50 litres Correct Answer Incorrect Answer
D 47 litres Correct Answer Incorrect Answer

Solution

Amount of oil in the mixture = 65 × (2/5) = 26 litres Amount of oil withdrawn = 35 × (2/5) = 14 litres Quantity of oil in the final mixture = 26 – 14 + 35 = 47 litres

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