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 $85$ $$1,0002,000$

B $641,5002,000$ A

C $851,8002,300$ A

D $1291,0001,800$ B

E $14119501,450$ B

F $971,5001,900$ C$,$ D

G $752,3002,800$ E$,$ F

Answers:

$$14,450$

$$13,450.$

Correct $$12,450$

$$11,450$