PROBLEMS AND EXERCISES

$3\mathrm{.}20.$ A project has been defined to contain the following list of activities along with their required

times for completion:

a$)$ Draw a network diagram for these activities

b$)$ Calculate the earliest expected completed time

c$)$ Show the critical path

d$)$ What would happen if activity $6$ were revised to take $6$ weeks instead of $2$ weeks?