In a mixture of 30 liters, the ratio of acid and water is 7 : 3. How much more water is to be added to get a new mixture containing acid and water in the ratio of 3 : 7?
A. 30 liters
B. 25 liters
C. 40 liters
D. 35 liters
সঠিক উত্তরঃ
C.
40 liters
Explanation:
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