6. Consider a project consisting of the following activities. Activity Immediate Normal Time | Crash Time Normal Cost Crash Cost Predecessors (weeks) (weeks) $ $ A None 4 3 3000 6000 B None 4 3 5000 7000 C A 9 7 2000 6000 D A, B 2 2 3000 3000 E B 15 12 4000 7000 F C.D 7 5 4000 5000 G E,F 5 3 2000 5200 a) How would you crash this project by 2 weeks? What is the cost? b) Suppose your client would like the project completed in 23 weeks. The late penalty is $300 per day and overhead costs the firm $500 per day. How would you crash this project