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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Answer: 40L of 30% alchohol and 20L of 60% alchohol should be mixed.
Step-by-step explanation:
Using alligation we find ratio to be mixed as 2:1.
Total 3 units. We need 60 Litres so multiply each ratio term with 20.
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