1. A project has the activity duration and cost information indicated in the table where all times are in weeks. There is a penalty of $250 per week for every week the project extends beyond 32 weeks. What is the cost of the least expensive project possible?

Activity Normal time Crash time Normal Cost Crash cost Predecessor

A 8 5 1,000 2,000

B 6 4 1,500 2,000 A

C 8 5 1,800 2,300 A

D 12 9 1,000 1,800 B

E 14 11 950 1,450 B

F 9 7 1,500 1,900 C, D

G 7 5 2,300 2,800 E, F

Answers : $11,450 $13,450 $12,450 $14,450