For a new product, a manufacturer set up an infrastructure which costs him Rs 1,40,000 and variable cost is estimated as Rs 125 for each unit of the product. The sale price per unit is fixed at Rs 160. Write down the cost function C( x), Revenue function R( x)and profit function P( x) for x units of the product. Calculate Marginal Revenue and Marginal cost(PS : for calculating marginal also we will apply differentiation) (5 points)