Task	Immediate Predecessors	Optimistic	Most probable	Pessimistic	Crash Time	Normal Cost (100)	Crash Cost (100)
A	-	5	6	7	4	10	19
B	-	7	8	15	7	10	18
C	A, B	3	4	5	2	15	27
D	C	9	10	23	8	20	32
E	C	8	10	12	7	50	80
F	E	5	6	7	4	30	41
G	C	5	6	19	5	80	102.5
H	D, F, G	5	6	7	4	50	64
I	D, F	3	6	15	4	100	124
J	H	2	4	6	3	40	44
K	I, J	3	4	5	3	50	55

1. Draw a project network
2. Find the critical path and expected project completion time.
3. Assuming that management desire a 21 weeks project completion time. What activity should be crashed?
4. Activity schedule table after crashing.
5. Find total project cost after crashing.