Question: What is the marginal cost of producing one additional unit if the total cost of producing 100 units is $1,000 and the total cost of producing 101 units is $1,020?
Options:
Correct Answer: $20
Solution:
The marginal cost is the change in total cost divided by the change in quantity. Here, it is ($1,020 - $1,000) / (101 - 100) = $20.