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a. What is the significance of the three stages of production? (2) b. The total product (TP) of a firm at different levels of labor input is given below. Calculate the Average Product (AP) and the Marginal Product (MP) at these input levels and mark out the three different stages of production. (Assume that the condition for the first stage of production is MP>AP.) Labour Input Total Product (TP) I 4 2 9 3 13 4 15 5 12 Text c. Production Function for a firm is given as Q (output) = 10K0.5 0.3 where K and L represent capital and Labour inputs. Calculate the outputs at K=25, L=40, and K=50, L=80. What form of returns to scale does the firm display? Why? (4)