A portable lunch wagon is to be located along the main aisle of an industrial plant. On a coordinate system, the main aisle connects the points (0, 10) and (12, 10). Travel between customer locations and the main aisle is rectilinear. The coordinate points for the locations of workstations served by the lunch wagon are as follows: P1 (2, 4); P2 (2, 12); P3 (6, 4); P4 (6, 12); P5 (8, 8); P6 (12, 12); P7 (10, 14); P8 (12, 6); P9 (8, 14); and P10 (10, 4). Required:
If a single customer is located at each workstation, where should the lunch wagon be located along the main aisle to minimize cumulative customer walking distance?