MATHEMATICS · Single correct · CBSE · Mathematics · Applications of Derivatives · Applications of Derivatives
Problem
A firm's price–demand relation is p=50−2x, where p is the price (in rupees) per unit and x is the number of units sold. The total cost of producing x units is C(x)=10x+80 rupees. The profit is maximum when the firm sells
(a) 12 units
(b) 10 units
(c) 20 units
(d) 8 units