3 The activities involved in a project and their durations are represented in the activity network below.
\includegraphics[max width=\textwidth, alt={}, center]{a7bca340-6947-42b5-bc35-e6d429d6bed7-3_494_700_306_683}
- Carry out a forward pass and a backward pass through the network.
- Find the float for each activity.
A delay means that the duration of activity E increases to \(x\).
- Find the values of \(x\) for which activity E is not a critical activity.