Activity | Immediate Predecessors | Duration |
A | - | 7 |
B | - | 8 |
C | - | 6 |
D | A | 6 |
E | B | 6 |
F | B | 8 |
G | C | 4 |
H | E, D | 7 |
Forward Pass Method
E1=0
E2=0+7=7
E3=0+8=8
E4=0+6=6
E5 =Max{13;14} =14
E6= Max{16;10;21} =21
Backward Pass Method
L6=E6=21
L5=21-7=14
L4=21-4=17
L3= Min{13;8} =8
L2=14-6=8
L1=Min{11;0;1} =0
The critical path of the project is: 1-3-5-6 and critical
activities are B, E, H
The total project time is 21.
Among B, E and H activity, E can be reduced as it is having the lowest cost i.e. 6
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