A company is introduction a product Z. It estimated that it can sell 10,000 units if it charges a price of Rs. 50 per unit and for every increase of Rs. 5 per unit in
the price of Z. the quantity sold would decrease by 1,000 units and vice versa. At
what price the profit can be maximized if the cost of production is Rs. 30 per
unit.
a) 100
b) 70
c) 65
d) 50