1. Sony will build a new warehouse in city X to supply points of sale in South East Asia. On the basis of a preliminary analysis of the problem, it has been decided that the facility will accommodate at least 900 pallets of size 110 110cm2. Goods will be stored on racks and transported by forklift. Each shelf has four shelves, each of which can store a single pallet. Each pallet occupies an area of 1.25 1.25 m2. Shelves are arranged where the side aisle is 3.5 m wide, while the middle aisle is 5 m wide. The average speed of the trolley is 6 km / h. Define the nx and ny variables: