Question: Normal time Crash time Task (days) (days) Normal Cost ($) Crash Cost (S) Predecessor(s) a 20 12 50 70 b 14 12 60 80 7

Normal time Crash time Task (days) (days) Normal

Normal time Crash time Task (days) (days) Normal Cost ($) Crash Cost (S) Predecessor(s) a 20 12 50 70 b 14 12 60 80 7 6 70 160 b d 1 20 50 N a, c e 3 2 200 300 a, c f 8 5 100 200 b bil) 5 4 50 100 d h 6 3 60 180 e, f a) Draw a AON network diagram for the project. (5 pts) b) Mark the critical path and state its length using normal time. (5 pts) c) Calculate crash cost per period for all project activities. (5 pts) d) The project has to be completed 1 day earlier. Which task should be crashed first? Explain why. (5 pts) e) Crash the project by 2 days with the least cost. Which activities have to be crashed? How much is additional cost for this crash? (5 pts)

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