Question

to make green paint,a painter mixes yellow paint and blue paint in the ratio of 3:2.if he used 12 liters of yellow paint,how much blue paint did he use

Answer 1

Hi friend!

Ratio = 3:2
= 3x:2x

Yellow paint = 3x
Blue paint = 2x

3x = 12
x = 12/3
x = 4 litres

Blue paint = 2x = 2*4
= 8 litres

Hope you found my answer useful .

Answer 2

$3 = 12 \\ 2 = x \\ 12 \div 3 = 4 \\ = 4 \times 2 = 8$
the painter used 8 litre of blue paint