The cost function for a product in a firm is given by $5 q^{2},$ where $q$ is the amount of production. The firm can sell the product at a market price of $₹ 50$ per unit. The number of units to be produced by the firm such that the profit is maximized is

(A) 5

(B) 10

(C) 15

(D) 25

The cost function for a product in a firm is given by $5 q^{2},$ where $q$ is the amount of production. The firm can sell the product at a market price of $₹ 50$ per unit. The number of units to be produced by the firm such that the profit is maximized is

(A) 5

(B) 10

(C) 15

(D) 25

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