Question
In container P, there is 100 litres of milk and in
container Q there is 50 litres of water. 25% of milk and 40% 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 5:7? MTSolution
Quantity of milk in container R = 0.25 × 100 = 25 litres Quantity of water in container R = 0.40 × 50 = 20 litres Let x litres of water is added to the container R. According to the question, 25/(20 + x) = 5/7 Or, 175 = 100 + 5x Or, 5x = 75 Or, x = 15 Therefore, water added to container R = 15 litres
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