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Amount of oil in the mixture = 65 × (2/5) = 26 litres Amount of oil withdrawn = 35 × (2/5) = 14 litres Quantity of oil in the final mixture = 26 – 14 + 35 = 47 litres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