b2sonicxh
2021-12-31
Timothy Wolff
Beginner2022-01-01Added 26 answers
Lakisha Archer
Beginner2022-01-02Added 39 answers
karton
Expert2022-01-04Added 613 answers
Solution A
Concentration = 25%=0.25
Amount =x
Solution B
Concentration = 12%=0.12
Amount = 13-x
Resultant Solution
Concentration = 15%=0.15
Amount = 13 liters
0.25x+0.12(13-x)=0.15 * 13
0.25x+1.56-0.12x=1.95
0.25x+1.56-0.12x=1.95
0.13x=1.95-1.56
0.13x=0.39
0.13x/13=0.39/13
x=3
Amount of solution A = x = 3 liters
Amount of solution B = 13-x = 13-3 = 10 liters
Answer
3 liters of a 25% alcohol solution must be mixed with 10 liters of 12% solution to get 13 liters of 15% solution.
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