assume when a project starts there are two concurrent tasks: task a requires three days to complete and task b requires three days to complete. the predecessor for task d is task a. task d requires three days to complete. the predecessor for task c (which requires five days) is task b. the successor of task d is task e. task e takes three days. another successor of task a is task f, which requires three days. task f is the predecessor task g which requires one day. task e, g and c are predecessors for the task h. task h is the last task of the project and requires 2 days.
