Question

Rosie is making a special green paint it contains 2/3 cups yellow paint 1/3 cups white paint 1 and 1/5 blue paint and 1/5 black paint what percentage of the green paint is blue

Answer 1

50%

Explanation:

total cups to make green paint: 36/15

total cups of blue paint in green paint: 18/15

18/15 is what % of 36/15

(18/15) ÷ (36/15) = x÷100

the above proportion can be simplified to be:

(6/5) ÷ (12/5) = x÷100

cross-multiply to get:

(12/5)x = 600/5

x = (600/5) · (5/12)

x = 50