PART

Need help with $4\mathrm{.}8$ and $4\mathrm{.}10$

$1$ Construction Management

$4\mathrm{.}8$ Develop a logic network for the sequence of activities listed in the table. Calculate the ES$,$ EF$,$ LS$,$ and LF times for all activities.

a$.$ What is the project duration?

b$.$ What are the critical activities?

$\backslash$table$[[$Activity$,$Duration,PIB$],[5,4,$None$],[10,3,5],[15,4,5],[20,2,10,15],[25,3,15],[30,1,20],[35,4,20,25],[40,3,25],[45,2,30,35,40$