Using constant workforce and varying inventory and stockout, what would be the constant workforce? production required in periods 1,2 and 3 respectively are 1200, 1500 and 900 units. one worker during the panning horizoncan produce two units in one day. number of work days are 22 in period 17 in period 2 and 21 in period 3. assume that the beginning inventory and the edniong inventory required are 300 units each. what is the number of workers required during the planning horizon of three periods?