Question

The total revenue in Rupees received from the sale of x units of a product is given by
R(x) = 3x² + 36x + 5. The marginal revenue, when x = 15 is
A. 116
B. 96
C. 90
D. 126

Answer 1

Step-by-step explanation:

=>given, R(x) = 3x² + 36x + 5

        so, Marginal revenue ,

=>M.R =dr(x)/dx=d(3x² + 36x + 5)/dx = 6x + 36

              when x = 15 ,

=>marginal revenue , =M.R = 6(15) + 36

                                    =M.R = 90 + 36 = 126

=>hence, option (D) is correct

        hope it helps mark as brilliant pls.