Question

Consider a project having the following six activities:                                  

Consider a project having the following six activities:

                                                     Immediate                                                  Max        Crash cost

            Activity                           Predecessors           Time (weeks)             Crash*    per week

                  A                                none                                    6                          6                N/A

                  B                                none                                    5                          2               $500

                  C                                A                                       3                          2             $1000

                  D                                A, B                                    4                          2             $2000

                  E                                 C, D                                    5                          2             $1250

                  F                                D                                       6                          2             $1000

                                                                                                *Shortest possible time for the task

  1. Draw the project network and list the earliest start (ES), earliest finish (EF), latest start (LS) and latest finish (LF) for each task
  1. List the tasks on the critical path
  1. What is the expected project duration in weeks?

           

  1. What is the slack for each activity?

A:              B:        C:        D:         E:0       F:        

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