CPM Homework Assignment

Construction of a building is based on the following CPM network:

Activity	Predecessor	Successor	Normal time	Normal cost	Crash time	Crash cost
A		B, C, D	6	$100	2	$150
B	A	E, C	8	80	2	140
C	B, A	F	2	40	1	60
D	A	F, G	3	80	2	120
E	B	G	5	80	3	140
F	C, D	G	5	60	1	100
G	E, F, D		6	120	2	160

1. Draw the network for this project.
2. Do a forward pass and a backward pass.
3. What is the critical path?
4. What is the total normal project completion time?
5. What is the total cost for normal project completion?
6. How much will it cost to crash the project completion by one day (What is the new total normal cost for project completion)?
7. Can the project completion be crashed by two days? Why or why not? If so, how?
8. What will be the new total normal cost for project completion if it is crashed by two days?
9. What is the minimum time for project completion?