MCQOPTIONS
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| 1. |
In what ratio must a mixture of 30% alcohol strength be mixed with that of 50% alcohol strength so as get a mixture of 45% alcohol strength ? |
| A. | : 2 |
| B. | : 3 |
| C. | : 1 |
| D. | : 1 |
| Answer» C. : 1 | |