engineering recuitment GATE ME 2023-24 Test Series Construction Materials and Management Project Planning CPM
A PERT project network consists of 5 activities A to E. The time estimates of these activities follow Beta-distribution. The predecessor—successor (P-S) relationships between the nodes and time estimates of activities are given in table.
|
Activity |
P – S |
Optimistic time (days) |
Most likely time (days) |
Pessimistic time (days) |
|
A |
1 – 2 |
2 |
4 |
6 |
|
B |
2 – 3 |
4 |
5 |
12 |
|
C |
2 – 4 |
5 |
8 |
11 |
|
D |
3 – 5 |
2 |
5 |
08 |
|
E |
4 – 5 |
4 |
6 |
14 |
The variance (in day2) of the critical path is ______ (round off to 2 decimal places)
Enter numerical value using the virtual keypad. Round off where necessary.