"Consider the network shown in Figure 8-8, which represents one cycle of work which is to be repeated many times in a project. Since the longest activity in this cycle has a duration of 16 days, assume that the cycle is to be repeated at 16-day intervals. If each activity in the network requires one crew of the type under consideration, find the optimal cycle schedule of activities, which in this case requires 5 crews on each of the 16 days which make up a cyde.