foundation

$21$ Use the activities in Table $1$ to draw the network diagram.

$($b$)$

$2\mathrm{.}2$ Calculate the critical path $($CP$)$ for this project.

$(4)$

$2\mathrm{.}3$ Calculate the earliest start $($ES$)$ and the earliest finish $($EF$)$ for all the activities in this project and complete the table below:

$(8)$

$\backslash$table$[[$Activity No$.,$ES$,$EF$]]$