Question
161 litres mixture of milk and water is mixed in an
empty container in the ratio 5:2, respectively. If 14 litres of mixture is replaced with 14 litres of water then what will the ratio of milk to water in the resultant mixture?Solution
Initially, amount of milk = (5/7) × 161 = 115 litres Amount of water = (2/7) × 161 = 46 litres 14 litres of mixture is replaced. Amount of milk replaced = 14 x (5/7) = 10 Amount of water replaced = 14 x (2/7) = 4 So, required ratio = (115 – 10):(46 – 4 + 14) = 105:56 = 15:8
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