Question

If t is the expected completion time for a given activity, then

a. LF = LS - t
b. EF = ES + t
c. EF = LS - ES
d. EF = ES + t

Answer 1

The correct answer is d. EF = ES + t. In project management, ES represents the earliest possible start time for an activity, and EF represents the earliest possible finish time for an activity. The expected completion time t is added to the ES to calculate the EF.

Step-by-step explanation:

The correct answer is d. EF = ES + t. In project management, ES (Early Start) represents the earliest possible start time for an activity, and EF (Early Finish) represents the earliest possible finish time for an activity. The expected completion time t is added to the ES to calculate the EF. This formula represents the forward pass calculation in the Critical Path Method (CPM).

For example, if an activity has an ES of 5 and an expected completion time of 3, the EF would be 5 + 3 = 8.

In contrast, LF (Late Finish) represents the latest possible finish time for an activity, and LS (Late Start) represents the latest possible start time for an activity. The formula LF = LS - t is used for backward pass calculations in CPM, where LF is subtracted by the expected completion time t to calculate the LS.