Question

if two workers can produce 22 units of output, and the addition of a third worker increases output to 30 units, the marginal product of the third worker is:
a. 10 units.
b. 8 units.
c. 30 units.
d. 22 units.

Explanation:

Step1: Define marginal product

Marginal product = New total output - Initial total output

Step2: Plug in given values

Marginal product = $30 - 22$

Answer:

b. 8 units.