Answer:
12 gallons of blue paint
4 gallons of yellow paint
Explanation:
since we take 3 gallons of blue paint for every 1 gallon of yellow paint, we use 4 gallons of paint every time. we also have a ratio 3 : 1.
using 16 means we use this combination 16/4=4 times.
so, we multiply the ratio by 4:
3×4 = 12 gallons of blue paint
1×4 = 4 gallons of yellow paint