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Question

In a 160 litres mixture of milk and water, the ratio of the milk to water is 4:1. If 28 litres mixture is taken out and replaced by same quantity of water, then find the percentage of water in the resultant mixture

A 30% Correct Answer Incorrect Answer
B 36% Correct Answer Incorrect Answer
C 35% Correct Answer Incorrect Answer
D 34% Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Initial quantity of milk in the mixture = 160 × 4/5 = 128 litres Initial quantity of water in the mixture = 160 × 1/5 = 32 litres 28 litres mixture contains 22.4 litres milk and 5.6 litres water. So the quantity of water in the resultant mixture = 32 – 5.6 + 28 = 54.4 litres Percentage of water in the resultant mixture = 54.4/160 × 100 = 34%

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