4. The long-run adjustment to the capital labour ratio is illustrated on Figure 1. (below) The price of labour is $20 and the price of capital is $20. The firm is committed to producing an output of 20 units. Total Costs = $400. (9 marks) Figure 1 Point F, Point G, 12L, 5L, 10K 9K TP = 10 Point E, 15L, 5K TP = 20 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 L a) What is the original price of a unit of output?10 b) The price of labour doubles. What is the price of a unit of output in the short run? c) What is the price of a unit of output after the increase in the price of labour in the long run