Full question attached:
Answer attached
Answer and Explanation:
ES= earliest start time
LS=latest start time
EF= earliest finish time
LF= latest finish time
in calculating earliest start time, we look at predecessor to the task, for example c has a predecessor of A and so ES would be after A=3.in calculating our earliest start time and latest finish time we have used the forward pass and backward pass method respectively. The forward pass method uses the latest of the predecessors earliest finish in calculating ES while the backward pass method uses the earliest of the successors latest start(LS)in calculating latest finish(LF)
EF=ES+time
LS=LF-time
slack=LF-EF
The Critical path is ADEG identified by zero slacks
project duration is equal to duration of critical path equal to 15
