You are in charge of a project at the local community center. The center needs to remodel one of the rooms in time for the start of a new program. Delays in the project mean that the center must rent other space at a nearby church at additional cost. Time and cost data for your project are contained in the table below. Your interest is in minimizing the cost of the project to the community center a. Using the normal times for each activity, what is the earliest date you can complete the project? The corresponding project duration using the normal times is ____ days. (Enter your response as an integer.)
Expert Answer
Activity | Normal time | Pre | ES | EF | LS | LF |
Start | 0 | NA | 0 | 0 | 0 | 0 |
A | 5 | Start | 0 | 5 | 0 | 5 |
B | 4 | Start | 0 | 4 | 0 | 4 |
C | 3 | B | 4 | 7 | 4 | 7 |
D | 7 | A,C | 5 | 12 | 7 | 14 |
E | 7 | A,C | 5 | 12 | 7 | 14 |
F | 5 | B | 4 | 9 | 4 | 9 |
G | 5 | D | 12 | 17 | 14 | 19 |
H | 6 | E,F | 9 | 15 | 14 | 20 |
Finish | 0 | G,H | 15 | 15 | 20 | 20 |
So the LS and LF gives the accurate picture. So
20 Days