Question $1(30\%)$:

For the following schedule, draw the AON network, perform the CPM calculations to compute the values of ES$,$ EF$,$ LS$,$ LF$,$ TF$,$ FF for the activities. In the network, also mark the critical path.

$\backslash$table$[[$Activity$,$IPA,Duration $($Days$)],[$A$,--,5],[$B$,$A$,7],[$C$,$A$,10],[$D$,$A$,5],[$E$,$A$,9],[$F$,$B$,6],[$G$,$B$,$ C$,4],[$H$,$B$,$ C$,$ D$,8],[$I$,$C$,$ D$,2],[$J$,$E$,5],[$K$,$F$,8],[$L$,$E$,$ G$,9],[$M$,$F$,$ G$,$ H$,7],[$N$,$F$,$ G$,$ H$,$ I,$3],[$O$,$H$,$ I,$6],[$P$,$M$,$ N$,$ O$,4],[$Q$,$K$,$ L$,3],[$R$,$L$,$ M$,5],[$S$,$J$,$ P$,4],[$T$,$Q$,6],[$U$,$Q$,$ R$,4],[$V$,$T$,$ U$,$ S$,1],[,,]]$