The Total solution for NCERT class 6-12
The total revenue in Rupees received from thesale of x units of a product is given by
Find the marginal revenue when x =7.
Marginal revenue is the rate of change of total revenuewith respect to the number of units sold.
= 13(2x) + 26 = 26x + 26
When x = 7,
MR = 26(7) + 26 = 182 + 26 = 208
Hence, the required marginal revenue is Rs 208.