Assume the total product of three workers is 120 and the total product of four workers is 160. The average product of four workers is , and the marginal product of the fourth worker is .

Average product = 40

Marginal product = 40

Explanation:

We know,

Average product = Total product (Q) ÷ total number of labors (L)

Marginal product = ΔQ ÷ ΔL = () ÷

Given,

Labor     Total Product (Q)      Average Product        Marginal Product

3                      120                       (120 ÷ 3) = 40                -

4                      160                       (160 ÷ 4) = 40      (160 - 120) ÷ (4 - 3) = 40

Therefore, The average product of four workers is 40, and the marginal product of the fourth worker is also 40.

(75years ,i believe is the correct answer.good luck

c is the answer, and do you have a ps4?