Mathematics, 09.11.2020 05:10 yaaaaa31gghgf
A scientist needs 80 liters of a 30% solution of alcohol. She has a 20% solution and a 60% solution available. How many liters of the 20% solution and how many liters of the 60% solution should she mix to make the 30% solution?
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A scientist needs 80 liters of a 30% solution of alcohol. She has a 20% solution and a 60% solution...
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