please what should be the anwer in question for box and solution

The whirlpool factory in Oxford, Mississippi. makes built-in kitchen ovens. In the 1990s, this plant re-engineered its processes to become JIT/lean. One of the parts of a particular oven, Part A, Is processed by two 600 ton presses (in series), and then goes through a porcelain system to be coated. Finally, it is stored in the WIP storage location until it is used by the assembly lines. As a container of Part A is to be used, the kanban attached to it is taken to the press area and posted on the Kanban Post. Demand for Part A is 175 units per workday. A workday is 19 hours. The container size is 30 units. The setup time is 1 hour. Because of the large setup time, 5 kanbans are accumulated before production of A begins on the presses (approximately 16 hours of wait time). Production rate for Als 120 units per hour. The safety factor is 120 percent. 600 TON PRESSES LA 2A PORCELAIN SYSTEM 1B 28 KANSAN POST 600 TON PRESSES 2A TB 28 KANBAN POST PORCELAIN SYSTEM WIP STORAGE LOCATION ASSEMBLY UNES PART FLOW --- KANBAN FLOW Determine the number of kanbans required for Part A? (Round the final answer to the nearest w Number of Kanbans