For the network shown:

G(4)

D(6)

C(8)

B(10)

A(5) E(7)

F(4)

a. Determine the critical path and the early completion time in weeks for the project.

b. For the data shown, reduce the project completion time by three weeks. Assume a linear cost per week shortened, and show, step by step, how you arrived at your schedule.

Activity Normal Time Normal Cost Crash Time Crash Cost A

B C

D E

F G

5 10 8

6 7

4 4

$ 7,000 12,000 5,000 4,000 3,000 6,000 7,000 3

7 7

5 6

3 3

$13,000 18,000 7,000 5,000 6,000 7,000 9,000

 LO.1