Question

If A, B, and C are three activities connected with SS and FF (combination) relationships with 2-day lag on the SS relationships only. Their durations are 5, 10, and 3; respectively. What is the duration of the project:

Answer 1

Answer:

22 days

Explanation:

number of activities : 3 ( A,B,C)

connected via : SS and FF combination.  days lag on SS and F = 2

Durations : 5,10 and 3

A and B is connected by SS and there is a 2-day lag on the SS connection, this means that B will start 2 days after A have ended

i.e when T = 0 , B will start : 5 +2 = 7 days and end in 17 days

while B and C is connected by FF and there is also a 2-day lag on the FF connection, this means that C will start after B has ended and end in 2 days

i.e when B ends at 17 days ; C starts = 17 + 2 = 19 DAYS

hence the project will end in 19 + 3 = 22 days ( i.e when C ends )