One of the industrial companies has the following data :- Weekly production volume : 12000 units The number of weekly working hours for the worker : 40 hours Hourly rate : $ 2 Number of employees : 20 workers Annual cost of capital : $ 100,000 Annual energy cost : $ 15,000 Number of weeks in a year : 52 weeks Find the following :- 1-Total productivity 2-Labor hour productivity 3-Dollar productivity of capital 4-Energy productivity of the dollar