In 729 ml. mixture the ration of milk and water is 7:2. How much quantity of water should be added in new mixture so that the ratio of milk and water becomes 7:3?
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In 729 ml. mixture the ration of milk and water is 7:2. How much quantity of water should be added in new mixture so that the ratio of milk and water becomes 7:3?
Quantity of milk in mixture = 729 x (7/9) = 567 ml.
Quantity of water in mixture = (729 – 567) = 162 ml.
Assume X ml of water be added in mixture = 567/(162 + X) = (7/3)
After solving X = 81 ml.
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