# A pharmacist has a 10% alcohol solution and a 25% alcohol solution. How many milliliters of each solution will she need to mix together in order to have 200 mL of a 20% alcohol solution?

##### 1 Answer

Mar 10, 2018

10% solution

25% solution

#### Explanation:

Let us begin by assigning volume values to each of the solutions.

We will make the

This will make the

The final

The equation for combining the solutions becomes