Mathematics, 04.07.2019 08:30 Scp049

Ascientist needs 60 liters of a 40% acid solution. he currently has a 20 % solution and a 50 % solution. how many liters of each does he need to make the needed 60 liters of 40% acid solution?

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Ascientist needs 60 liters of a 40% acid solution. he currently has a 20 % solution and a 50 % solut...