Question

A pharmacist has a 12% alcohol solution and another 18% alcohol solution.How much of each must he use to make 80 grams of a 15% solution

Answer 1

Answer:40 grams each

Step-by-step explanation:(12÷100)×x+(18÷100)×y=(15÷100)×(x+y)

3y=3x

x÷y=1:1

12%alcohol solution =(1÷2)×80=40grams

18% alcohol solution=1÷2×80=40 grams