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There are 9 different tasks and their corresponding time requirements are given on the table. Task Time required (weeks) Immediate predecessors 3 B 4 A

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There are 9 different tasks and their corresponding time requirements are given on the table. Task Time required (weeks) Immediate predecessors 3 B 4 A C 2 A D 6 B,C E 5 F 3 G 7 E H 5 5 EF D, G, H I 8 a. Please draw activity on network diagram of this operation b. Please develop a mathematical model to get optimal solution for this problem. (Please explicitly define your parameter, variables, contraints, etc. c. Please solve your model by using excel solver

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