Activity Duration, days Preceding Activities Problem 2. A 9 C,F,J B 9 E 60 - D 8 E 2 B,H C,J F 6 - G 9 A,I H 12 J | 13 E,F J 9 K 16 B,H,I 1 2 Construct an activity network for this project Find EST, EFT, LST, LFT 3 Find Float at each node 4 Find (a) critical path(s) in this acitivty network