Read the problem description here (same as in the previous questions but with extra information). The crash duration is the minimum duration of each activity. Any duration value between the crash duration and normal duration can be achieved and the corresponding cost is proportional (same assumption we made in class). The project needs to be completed in 3 days earlier than the current minimum project duration. Which activities need to be crashed in order to do so at the least possible cost? Say what the incremental cost is