Question

Activity C has a start-to-start relationship with Activity D. Activity C is 12 days and Activity D is 15 days. If the start of Activity D gets delayed by six days, what is the best case duration?

1) 27 days
2) 15 days
3) 21 days
4) 33 days

Answer 1

The best case duration for both activities to finish, given that Activity C has a start-to-start relationship with Activity D and considering the 6-day delay on Activity D, is 21 days.

Step-by-step explanation:

Given that Activity C has a start-to-start relationship with Activity D, the duration of Activity C (12 days) does not necessarily have to be completed before Activity D (15 days) can start. Since Activity D is delayed by 6 days, the best case scenario would be that Activity D starts as soon as Activity C starts, which means they would be running concurrently.

To find the best case duration, we calculate the time it takes for both activities to finish, considering the delay for Activity D:

Since Activity C has a duration of 12 days and Activity D has a duration of 15 days, the duration of both completed (considering the 6-day delay on Activity D) would simply be the longer duration of 15 days plus the delay.

15 days (Activity D duration) + 6 days (delay) = 21 days

Therefore, the best case duration for both activities to finish would be 21 days.