Question

To make green paint,a painter mixesyellow paint and blue paint in the ratio of3:2 . If the used twelve litresof yellow paint,how much blue paint did heuse

Answer 1

Ratio of yellow paint and blue paint is 3:2
let yellow paint quantity = 3a
let blue paint quantity = 2a
because he used yellow paint total 12 Liter, means
yellow paint quantity was total 12 liter that is equal to 3a
so 3a = 12 then a = 4
blue paint quantity = 2a = 2×4 = 8 liter