Answer:
$20
Explanation:
Given that,
Total fixed cost = $4,200
Number of workers employs = 30
Wages = $160 per worker
Average product of labor = 2
Marginal product of last labor hired = 8
Marginal cost refers to the additional cost that has occurred to produce the additional unit of a commodity.
Here, from the given information, we can calculate the marginal cost of the last unit produced by the last worker is as follows:
= Wages per worker ÷ Marginal product of last labor hired
= $160 ÷ 8
= $20