June 2006
Beginner
793 pages
20h 59m
English
Content preview from Quantitative Techniques: Theory and Problems
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PREPARATION OF NETWORK WHEN ACTIVITIES ARE GIVEN
Problem 6.42
Draw the network from the following activity and find critical path and total project duration.
| Activity | Immediate Predecessors | Duration (Days) |
| A | — | 10 |
| B | — | 9 |
| C | A | 9 |
| D | A | 8 |
| E | B | 7 |
| F | B | 11 |
| G | D, E | 5 |
Solution
| Various Paths | Duration of Paths |
| 1-2-5 | 10 + 9 = 19 |
| 1-2-4-5 | 10 + 8 + 5 = 23 |
| 1-3-4-5 | 9 + 7 + 5 = 21 |
| 1-3-5 | 9 + 11 = 20 |
Hence Critical Path is 1-2-4-5 i.e. (A-D-G) with Project duration of 23 days.
Problem 6.43
Draw the network from the following activity:
| Activity | Immediate Predecessors |
| A | - |
| B | A |
| C | A |
| D | B |
| E | A |
| F | B |
| G | C, D |
| H | F |
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