Use a weighted average. Let L = the liters of the 40% solution.
then. (40% x L + 90 x 80%)/(L + 90) = 50%
Solve for L to get 270 liters !
Diana B.
asked • 03/05/19how many liters of a 40% alcohol solution must be mixed with 90 liters of a solution that is 80% alcohol to get a solution that is 50% alcohol?
how many liters of a 40% alcohol solution must be mixed with 90 liters of a solution that is 80% alcohol to get a solution that is 50% alcohol?
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