Problem :

PERT$/$CPM$($Critical Path Method$)$

Using CPM find the minimum number of days to finish the project. For each activity find out the earliest start and finish time as well as latest start and finish time. Consider each week is equal to five days$($only the workdays$).$

$\backslash$table$[[$Activity$,$Predecessor,Duration$($Most Likely$)],[$A$,-,13$ days$],[$B$,$A$,$D$,4$ days$],[$C$,$A$,4$ days$],[$D$,-,14$ days$],[$E$,$A$,4$ days$],[$F$,$E$,1$ Week$],[$G$,$D$,12$ days$],[$H$,$F$,2$ Days$],[$I$,$H$,2$ Weeks$]]$