A draw the project network b determine the slack for each

Question

Consider the following project.

Activity                      Duration (weeks)                   Precedence Relationship

 

1                                            2                                 -

2                                            1                                 -

3                                            3                                 -

4                                            2                                 1, 2

5                                            3                                 2, 3

6                                             3                                 4, 5

7                                             1                                 -

8                                             2                                 6, 7

9                                             1                                 7

10                                           1                                 8, 9

a) Draw the project network.

b) Determine the slack for each activity

c) Identify the critical activities.

d) What is the least number of weeks required to complete the project?