A construction project has indirect costs totaling $40,000 per week. Major activities of the project, their expected ti

[answerhappygod]

A construction project has indirect costs totaling $40,000 per
week. Major activities of the project, their expected time,
and crashing costs per week are:
Crashing costs ($000)
Activity
Expected time (week)
Predecessor
First week
Second week
Third week
A
5
-
18
22
-
B
4
-
12
24
26
C
3
-
10
15
25
D
8
A
24
25
25
E
12
B
-
-
-
F
12
C
8
13
-
`G
6
B
3
10
12
H
7
D
30
30
35
I
4
H
15
20
-
J
5
E
40
40
40
K
9
G
2
7
10
L
9
F
5
12
-
M
8
L
14
15
-
N
1
K,M
26
-
-
P
11
I,J
30
33
36
What would be your recommended lowest cost duration for this
project? Show your work. For each step
specify what activity is crashed and show why.