A milkman mixes 20 litres of water with 80 litres of milk. After selling one-fourth of this mixture, he adds water to replenish the quantity that he has sold. What is the current proportion of water to milk?
Explanation:
The quantity of milk and water is as shown in the table.
∴ Current proportion of water and milk is 40 : 60 = 2 : 3
Hence, option (a).
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