Mathematics, 18.03.2021 02:00 tony001
A pharmacist was wondering:
How many liters of a 70% alcohol solution must be added to 10 liters of a 40% alcohol solution to produce
a 50% alcohol solution?
Answers: 3
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A pharmacist was wondering:
How many liters of a 70% alcohol solution must be added to 10 liters of...
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