Question in desc.

Question

To make green glowing paint, blue and yellow are mixed 3 to 4.

How much blue and yellow paint should the store mix to make 50 gallons of glowing green paint?

Answer 1

Let's say x is the gallons of blue paint mixed.

Then 50-x will be the gallons of yellow paint mixed.

The ratio of blue paint to yellow paint is 3/4

The ratio of the number of gallons of blue paint (x) to yellow paint (50-x) will be that same ratio, so we can set up a proportion:

3 x

-- = -----

4 50-x

Cross-multiplying:

4 * x = 3 (50-x)

4*x = 150 - 3*x

7*x = 150

x = 21.43, so 21.43 gallons of of blue paint will be required.

and 50-21.43 = 28.57 gallons of yellow paint will be required.