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Calculate the Number of Paths, Number of Critical Paths and Project Duration
For the project network shown, the total number of paths through the network; number of critical paths; and, project duration (days) is most nearly:
a. 6; 2; and, 26
b. 6; 1; and, 26
c. 5; 1; and, 25
d. 3; 3; and, 24
Solution: List the number of paths and calculate the duration for each.
L M O R T V = 4 + 7 + 2 + 2 + 2 + 9 = 26-days -- Critical
L M O S U = 4 + 7 + 2 + 3 + 7 = 23-days
L M Q V = 4 + 7 + 6 + 9 = 26-days - Critical
L M Q U = 4 + 7 + 6 + 7 = 24-days
L N P Q U = 4 + 3 + 6 + 7 = 20-days
L N P Q V = 4 + 3 + 3 + 6 + 9 = 25-days
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