NOTE:

Each of the six activities A to F will be performed by one crew of sub$-$contractors and we need to allow $3$ days buffer between activities.

Calculate on the basis that contractors can start and complete their work without the need for down$-$time.

Line of Balance table $($please fill in the blanks in the table$)$

$\backslash$table$[[$Activity$,\backslash$table$[[$Time$],[($Days$)]],\backslash$table$[[$Total$],[$Construction$],[$Time $($Days$)]],\backslash$table$[[$Earliest Start of Work$],[$Package $($Day$)]],\backslash$table$[[$Earliest Finish of Work$],[$Package $($Day$)]]],[$A$,3,90,,],[$B$,4,120,,],[$C$,3,90,,],[$D$,6,180,,],[$E$,2,60,,],[$F$,5,150,,]]$