Apharmacist has an 18% alcohol solution. how much of this solution and how much water must be mixed together to make 10 liters of a 12% alcohol solution?

of 18%,   water

Step-by-step explanation:

The 18% solution added to the water is equal to the 10 liters of 12% solution.

Let's say that the amount of 18% solution is x

18% of x = 0.18x

Let's say that the amount of water is 10-x

Because there is no alcohol in water, it will be 0(10-x), or just 0

0.18x + 0 = 10•0.12

0.18x = 1.2

x =

10 - =