Question

mix 2parts red with 3parts cream and 1part blue how much cream and blue paint do i need to mix with 4litres of red

Answer 1

The 4 litres of red has to be 2 parts of the mixture, so each part will be 2 litres. Therefore 3 parts of cream will be 6 litres and the one part of blue will be 2 litres.

Answer 2

So you have 2 parts red=4 litters, so one part red would be 2 litters making blue two litter and red 3 last equal to six