Answer: 8 quarts of green paint is needed to be mixed with 4 cups of black paint to make Jasper green.
Explanation:
Since we have given that
To make a shade of paint call Jasper green,

So, we will use " Unitary method " i.e.


Now, we need to calculate how much of green paint is to be mix with 4 cups of black paint,
4 cups of black paint needs

Hence, 8 quarts of green paint is needed to be mixed with 4 cups of black paint to make Jasper green.