Mathematics, 07.10.2021 02:00, tchase0616

A scientist needs 60 liters of a 40% solution of alcohol. He has a 30% solution and a 60% solution available. How many liters of the 30% solution and how many liters of the 60% solution should he mix to make the 40% solution?

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A scientist needs 60 liters of a 40% solution of alcohol. He has a 30% solution and a 60% solution a...