Question $1$: From the following information, develop an AON project network. Complete the forward and backward pass, compute activity slack, and identify the eritical path. How many days will the project take?

$\backslash$table$[[$ID$,$Description,Prodecessar,Tine$],[$A$,$Survey site,None,$2],[$B$,$Instal drainage,A$,5],[$C$,$Install power,A$,3],[$D$,$Ercavate site,B$,$C$,4],[$E$,$Pour foundation,D$,3]]$