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1. |
The ratio of the quantities of an acid and water in a mixture is 1 : 3. If 5 litres of acid is further added to the mixture, the new ratio becomes 1 : 2. The quantity of new mixture (in litres) is |
A. | 32 |
B. | 40 |
C. | 42 |
D. | 45 |
Answer» E. | |