solve only first 3 parts. quick thanks.

i) Draw a neat AoA network diagram (20) ii) Determine ES, LS, LF and Slack time (S) for all activities (10) iii) Identify the Critical Path(s) (10) iv) Calculate the project completion time. (4) v) What is the probability that the project will be completed 5 days prior to the estimated project completion time? (6) Immediate Time Variance Activity Predecessor(s) (days) A 9 1 B A 1 0.25 A 10 0.15 D A 10 0.75 E B, C 2 0.5 F C D 10 0.1 G D co 0.25 H D 6 0.2 I E 7 5 J EF 0.2 K GF 0.5 L G H 0.3 M IJK 10 0.2 N LM 1 0.1