The time for each activity to complete, the possible weeks by which that time can be reduced and the cost per week to decrease the activity time. The cost to complete the project in normal time is $10,000 (40%)

Activity	Duration (wks)	Predecessor(s)	Crash weeks (possible)	Crashing cost per week
A	2
B	3	A	-	-
C	4	B	-	-
D	3	B	1	$580
E	4	B	2	$600
F	2	B	2	$510
G	4	D	2	$470
H	3	E	2	$580
I	2	F	2	$600
J	3	C,G	1	$560
K	5	D	-	-
L	6	F,H,I	1	$520
M	3	K	-	-
N	4	J, K	1	$410
O	5	L,M	1	$850
P	6	M, N	1	$750

1. Draw the project network diagram for this project and identify those activities with slack number? (10%)

2. What is the minimum time duration of the project? (5%)

3. What is the critical path of the project? (5%)

4. How much will be the most economical way to complete the project in 21 weeks? (10%) 19 weeks?(10%)