Assume that the process starts empty, that set-ups at steps B and C can not begin until work arrives, that the production batch is 10 units at each step, and that the transfer batch between steps 1 and 2 , and between steps 2 and 3 is also 10 units (i.e., the units in a production batch must be moved together between steps.) How long does it take to complete a batch of 10 units? 250 minutes 278 minutes 320 minutes 375 minutes 420 minutes Use the info to answer the following four questions: Consider a process that consists of three steps 1, 2 and 3. Steps 1 and 2 are each equipped by a single machine. Step 3 is performed by a single worker. Each of the process steps works on one unit of work at a time, but must complete a "set up" between production batches. The required processing times and set-up times at each of the steps are listed below. There is unlimited space for buffer inventory between these steps. The system has an unlimited supply of work available to be performed (i.e., demand exceeds capacity). Assume that the process starts empty, that set-ups at steps B and C can not begin until work arrives, that the production batch is 10 units at each step, and the transfer batch between steps 1 and 2 , and between steps 2 and 3 is 1 unit (i.e., the unit completed at one step may be passed immediately to the next step). How long does it take to complete a batch of 10 units? 125 minutes 134 minutes 187 minutes 190 minutes None of the above