Consider a project having the following six activities:

Immediate Max Crash cost

Activity Predecessors Time (weeks) Crash* per week

A C, E 4 2 $2000

B A 6 2 $1000

C none 6 6 N/A

D C 3 2 $1000

E none 5 2 $500

F A, D 5 2 $1250

*Shortest possible time for the task

1. Draw the project network.
2. List the earliest start (ES), earliest finish (EF), latest start (LS) and latest finish (LF) for each task.
3. List all potential paths and duration.
4. List all the tasks on the critical path.
5. What is the expected project duration in weeks?
6. What is the slack for each activity? A: B: C:____ D: E: F:
7. The project needs to be crashed by 2 weeks. What activity or activities should be crashed to achieve the 2 week needed and what is the cost?