Question
In container P, there is 80 litres of milk and in
container Q there is 30 litres of water. 20% of milk and 30% of water is taken out from the respective containers and are mixed in container R. How much water should be added to container R such that the ratio of milk to water becomes 4:5? MTSolution
Quantity of milk in container R = 0.20 × 80 = 16 litres Quantity of water in container R = 0.30 × 30 = 9 litres Let x litres of water is added to the container R. According to the question, 16/(9 + x) = 4/5 Or, 80 = 36 + 4x Or, 4x = 44 Or, x = 11 Therefore, water added to container R = 11 litres
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