Question 6:(30 points) A proposed AGVS will operate between points A and B. In a given hour, 6 loads must be delivered from A to B, and 4 loads must be delivered from B to A. The AGVS layout will be a simple oval loop, with a travel distance between A and B of 500m in either direction. The traffic factor is therefore 1.0, availability is 1.0, and vehicle speed is 50m/min. The time to load is 1.0min and the time to unload is 1.0min. Determine the required minimum number of vehicles that will satisfy these delivery requirements. Assumptions: Vehicles can drop off load and pick up load at same station to minimize empty travel time