A project consists of nine activities whose time estimates (in weeks) and other characteristics are given below: Activities A B C D E F G H I…
BIT Operations Research · 2080 · Solved Question with Answer
A project consists of nine activities whose time estimates (in weeks) and other characteristics are given below:
| Activities | A | B | C | D | E | F | G | H | I |
|---|---|---|---|---|---|---|---|---|---|
| Preceding activities | – | – | – | A | A | B, D | B, D | C, F | E |
| Optimistic time | 2 | 6 | 6 | 2 | 11 | 8 | 3 | 9 | 4 |
| Most likely time | 4 | 6 | 12 | 5 | 14 | 10 | 6 | 15 | 10 |
| Pessimistic time | 6 | 6 | 24 | 8 | 23 | 12 | 9 | 27 | 16 |
(a) Show the PERT network diagram for the project.
(b) Identify the critical activities.
(c) What is the expected project completing time and its variance?