Question

You decide that you want to make a lighter purple paint. You make the new mixture by adding 1/4​​ cup of white paint for every 1/4​​ cup of red paint and 1/2​​ cup of blue paint. How much red paint, blue paint, and white paint do you use to make 1 1/2​​ gallons of the lighter purple paint?

Answer 1

Cups of white paint = 24 * 1/4 = 6 cups

Cups of red paint = 24 * 1/4 = 6 cups

Cups of blue paint = 24 * 1/2 = 12 cups

Explanation:

1/4 cup of white paint is added for every :

1/4 cup of red paint and 1/2 cup of blue paint :

1 gallon = 16 cups

1 1/2 gallons = 16 + 8 = 24 cups

To make 1 cup of lighter purple paint ;

1/4 cup of white + 1/4 cup of red + 1/2 cup of blue

Therefore ;

To make 24 cups of lighter purple paint :

Cups of white paint = 24 * 1/4 = 6 cups

Cups of red paint = 24 * 1/4 = 6 cups

Cups of blue paint = 24 * 1/2 = 12 cups