Answer:
12/1
Step-by-step explanation:
If a 1.8 ounce jar costs $4.05, you want to do $4.05 divided by 1.8. That will give you the cost per ounce.
$4.05 / 1.8 = $2.25 per ounce.
Let the two numbers be x and y
x + y = 5(x-y)
x + y = 5x -5y
6y = 4x
x= (6/4)y
x= (3/2)y
there the ratio is 3/2