Question
A container has 60 L of milk. 20 L is removed and
replaced with water. This process is repeated twice more. Find the final ratio of milk to water.Solution
Each time, 1/3 mixture removed ⇒ 2/3 milk retained. After 3 times: Milk = 60 × (2/3)³ = 160/9 L. Water = 60 − 160/9 = 380/9 L. Ratio = 8 : 19.
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