Aptitude Hack#7(2-3-19)

Question

The cost function for a product in a firm is given by 5q2, where q is the amount of production. The firm can sell the product at a market price of Rs 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
   

Answer A)5

 Explanation: 

Profit = Price - Cost
       = 50q - 5q2
The value of the above expression is maximum at q = 5.