Answer:
2/5
3/4
2 1/4
Step-by-step explanation:
red paint: 3/20
blue paint: 9/20
white paint: x
What fraction of the mixture is white paint?
x + 3/20 + 9/20 = 1
x + 12/20 = 20/20
x = 8/20 = 2/5
2/5 of the paint mixture is white paint.
The paint is sold in 5-litre containers. How many litres of red paint are needed for each container?
3/20 × 5 litre = 3/4 litre
Each container needs 3/4 liter of red paint.
How many litres of blue paint are needed for each container?
9/20 × 5 litres = 9/4 litres = 2 1/4 litres
Each container needs 2 1/4 liter of blue paint.
