Initial schedule

Fully crashed schedule

activity cost $(000\text{'}$s$)$ Duration $($days$)$ cost $(000\text{'}$s$)$ Duration $($days$)$

$\backslash$table$[[$A$,5,4,9,3],[$B$*,10,5,13,4]]$

$\backslash$table$[[C,3\mathrm{.}5,2,7,1]]$

$\backslash$table$[[$D$*,4\mathrm{.}5,6,8\mathrm{.}5,4]]$

$\backslash$table$[[$E$,1\mathrm{.}5,3,4,2]]$

$\backslash$table$[[$F$,7\mathrm{.}5,8,12\mathrm{.}5,7],[$G$*,3,7,5\mathrm{.}5,6],[$H$,2\mathrm{.}5,6,5\mathrm{.}5,5]]$

a$)$ Identify the sequence of the activities to be crashed in the first $3$ crashing steps.

b$)$ What is the duration and cost of the project after the first three crashing steps?

c$)$ If a penalty charge of $$5000$ per day is imposed past day $18,$ which activities do you crash and by how far?