4.
\$ FMMUMITI7 IP HIZ3 UFHGHQFHIT
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\includegraphics[max width=\textwidth, alt={}, center]{34728928-2a21-463d-982e-c46ab2dc05c8-4_46_465_482_301}
\includegraphics[max width=\textwidth, alt={}, center]{34728928-2a21-463d-982e-c46ab2dc05c8-4_49_533_539_301}
\includegraphics[max width=\textwidth, alt={}, center]{34728928-2a21-463d-982e-c46ab2dc05c8-4_49_472_593_303}
\includegraphics[max width=\textwidth, alt={}, center]{34728928-2a21-463d-982e-c46ab2dc05c8-4_49_497_648_303}
\includegraphics[max width=\textwidth, alt={}, center]{34728928-2a21-463d-982e-c46ab2dc05c8-4_54_501_703_306}
\includegraphics[max width=\textwidth, alt={}, center]{34728928-2a21-463d-982e-c46ab2dc05c8-4_45_467_762_303}
\includegraphics[max width=\textwidth, alt={}, center]{34728928-2a21-463d-982e-c46ab2dc05c8-4_49_463_813_303}
\includegraphics[max width=\textwidth, alt={}, center]{34728928-2a21-463d-982e-c46ab2dc05c8-4_47_460_872_303}
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Fig. 2
Construct an activity network to model the work involved in laying the foundations and putting in services for an industrial complex.
- Execute a forward scan to find the minimum time in which the project can be completed.
- Execute a backward scan to determine which activities lie on the critical path.
The contractor is committed to completing the project in this minimum time and faces a penalty of \(\pounds 50000\) for each day that the project is late. Unfortunately, before any work has begun, flooding means that activity \(E\) will take 3 days longer than the 7 days allocated.
- Activity \(K\) could be completed in 1 day at an extra cost of \(\pounds 90000\). Explain why doing this is not economical.
(2 marks) - If the time taken to complete any one activity, other than \(E\), could be reduced by 2 days at an extra cost of \(\pounds 80000\), for which activities on their own would this be profitable. Explain your reasoning.
(3 marks)
11 marks