Mathematics, 30.03.2020 21:32 bluejay62

A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution. How much of the 70% solution is used? 20 liters 25 liters 30 liter

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A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution. How much o...