). Aria is about to introduce a new product which involves six activities. Table 2 illustrates relevant information about each activity: its immediate predecessor(s), the duration, the cost, the crash time and the crash cost. Table 2. Activity time/cost data. Durations (days) Standard Crash Activity Predecessors A B C E F 6 880 9 A, B A, B D C, E a) Draw the project network for the problem. 7 10 12 466 6 9 10 Cost (1000) Standard 15 36 16 21 11 12 Crash 18 42 18 24 13.5 19 [5%] b) Determine the EST, EFT, LST, LFT and slack for each activity. Also determine the critical path(s), the total project completion time and the total cost of the project. [20%] c) Aria knows that the competitor's product is scheduled to hit the market 35 days from now, so Aria must introduce her new product within 34 days. What should be done to achieve this at the least possible cost? Calculate the cost of the crashed project.