A furniture store "Beautiful Furniture" plans to create a new chair design for the new year's collection later. There are three types of chair designs I: dining chairs, study chairs, and patio chairs. Each of these chair designs requires a certain amount of wood, plastic, and aluminum. When there are 400 units of wood, 600 units of plastic, and 1500 units of aluminum in stock, what is the number of each type of chair that can be produced to spend the stock of materials in the warehouse? Use the Cromer method to solve this problem. Wood I Plastic I Aluminium _ Dining chair 1 _ 1 . 2 _ Study chair _ l _ 1 _ 3 Patio chair 1 2 _ 5