Question: Problem 3) (35 points) Draw the AON network for the following project and answer the questions that follow. Determine ES, EF, LS, LF, and slack

Problem 3) (35 points)

Draw the AON network for the following project and answer the questions that follow.

Determine ES, EF, LS, LF, and slack for each activity and then determine the total project completion time and the critical path for the project.

Crash this project to the maximum days it can be crashed at the least cost. Fill out the table for each day that the project is crashed.

Activity

Immediate predecessors

Normal time (days)

Crash time (days)

Normal cost

Crash cost

Crash cost per day

A

-

5

4

1000

1400

B

-

3

3

800

-

C

A, B

2

1

600

900

D

B

4

2

1600

2000

E

C, D

5

4

800

1200

f

E

2

1

1300

1400

Stage

Critical path/s

Total project time before crashing

Crash activity/ies

Crash cost added

Total crash cost

Total project time

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