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1. |
In a 60 liter mixture, the ratio of acid and water is 2 : 1. How much liter of water should be added to it so that the ratio of acid and water will be is 1 : 2? |
A. | 60 liters |
B. | 72 liters |
C. | 44 liters |
D. | 52 liters |
Answer» B. 72 liters | |