Q 55. 
If the duration of activity f alone is changed from 9 to 10 days, then the
(A) critical path remains the same and the total duration to complete the
project changes to 19 days.
(B) critical path and the total duration to complete the project remains the
same.
(C) critical path changes but the total duration to complete the project remains
the same.
(D) critical path changes and the total duration to complete the project changes
to 17 days.
Answer: (A)
Explanation:
