1.
Draw precedence network diagram for the following activities and find the critical path. Indicate the process for shortening the project duration.
$\begin{array}{|c|c|c|}\hline \text{Activity} & \text{Duration (Week)} & \text{Precedence} \\ \hline A & 1 & - \\ B & 2 & A \\ C & 5 & A \\ D & 2 & - \\ E & 4 & C, D \\ F & 3 & - \\ G & 4 & B, E, F \\ \hline \end{array}$
[10]