1.

In 729 litres solution of acid and water, the ratio of acid and water is 7 : 2. How many litres of water must be added to it to get the solution in which the ratio of acid and water is 5 : 3?

A. 187.2
B. 182.4
C. 178.2
D. 180.4
Answer» D. 180.4


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