Task ID	Predecessors	Normal Time	Maximum Crash Time	Normal Cost	Crash Cost (Slope)
1	-	5	1	50	20
2	-	3	2	60	60
3	1	4	0	70	0
4	1	2	1	50	10
5	2	5	3	100	60
6	3	2	1	90	100
7	4	5	1	50	30
8	5	2	0	60	40
9	6,7,8	3	1	200	200

Consider the project above. If the indirect costs of the project are: $90 at 15 days, $75 at 14 days, $50 at 13 days, $40 at 12 days, and $30 at 11 days.

Please help crash this project in a manner that minimizes the sum of the total direct and indirect costs.

After the first iteration of crashing, what is/are the critical path(s)?

		1-3-6-9 and 1-4-7-9
		1-3-6-9
		1-4-7-9
		2-5-8-9