ever rady battery co sells batteries at most major convenience stores. however, it has a very simple manufacturing startegy; it purchases batteries from a cheap supplier and simply applies ever-rady labels onto batteries in its own labeling facility. the process flow is shown above where rmi is raw materials inventory. the average flow time through the labeling process is tl=3minutes, and the average inventory in the raw materials buffer is irm=1200 batteries. on average, the inventory of the entire process turns 14 times per hour. assume the process is stable and compute the following, TRM IN MINUTES