The following is a list of activity times for a project, as well as crashing costs for its activities.

Determine which activities should be crashed and the total cost of crashing if the goal is to shorten the project by three weeks as cheaply as possible. First construct a network diagram. You can use either an AOA or an AON (see Solved Problem 5).

Path Activity Duration (weeks) First Crash Second Crash Top A 5 $8 $10 B 6 7 9 C 3 14 15 Middle D 3 9 11 E 7 8 9 C 3 14 15 Bottom F 5 10 15 G 5 11 13 H 5 12 14

 LO.1