Question

Josh mixes blue and white paint to make a lighter shade of white. He needs the ratio of blue to white paint to be 3:2 to get the desired color. If he uses 15 drops of blue paint, how many drops of white paint does he need to use

Answer 1

15 drops of blue to 10 drops of white paint.

Explanation:

multiply 3 by 5 to get 15

multiply 2 by 5 to get 10

so 10 drops of white paint.