Q: $1$ A project has $7$ activities. The relationship between activities is as below:

$\backslash$table$[[$Activity:$,$A$,$B$,$C$,$D$,$E$,$F$,$G$],[$Preceding Activity:,$--,--,--,$A$,$B$,$C$,$D$]]$

The duration of these activities and the labor requirement for the activities are as below:

$\backslash$table$[[$Activity:$,$A$,$B$,$C$,$D$,$E$,$F$,$G$],[$Duration $($Weeks$)$:$,1,2,2,1,3,2,1],[$Labor Requirement:,$2,1,1,1,$Im$,1,1],[1,,,,,,,]]$

The project duration should not exceed the minimum project schedule. Only three men are available for the project execution. Find the resource schedule with respect to labor.