Question

12. Suppose the total cost of producing T-shirts can be represented as TC - 50+ 2q. The marginal cost of the 5th T-shirt is A. 2 B. 10 C. 12 D. 60​

Answer 1

the answer is A (2)

Step-by-step explanation:

as we are interested in 5th shirt we will consider q = 5, we will take the derivative of the equation
dTC/dq = d(50 + 2q)/dq = 2

Marginal cost of the 5th T-shirt = dTC/dq (at q = 5) = 2
so the answer is option A that is 2