Question

The total cost function for x units of a commodity is given by $C(x) = \frac{25x^3}{3}-75x^2+48x+34$. The output $x$ at which the marginal cost is minimum is:

• A. 6
• B. 3
• C. 10
• D. 5

Answer 1

Answer: (B)

3

Answer 2

The correct option is (B):3