Question 4: (2 points) ABC factory is making an X product that consists of three workstations: station A (with 3 operators and 15 min. cycle time), station B (with 2 operators and 10 min. cycle time), and C (with 1 operator and 5 min. cycle time). The material flow between stations is based on a push flow. The inventory levels observed by an industrial engineer at the front point of each station are: 100 units (station A), 50 units (station B), and 100 units (station C). Daily customer demand is 50 units per day. Assume that this factory has one shift with 7 hours/day which includes 30 min lunch break & 30 min for progress meeting every day. The factory operates 5 days/week. Complete the following information: 1- The ideal # of operators is: 2- The total inventory time at workstation B is: (in days)