can you provide calculations and step-by-step solutions? can you also use table format wherever required?

A project has the following information (FS dependencies). o What is the duration of the critical path? (5 marks) (Hint: you do not need to do a forward and backward pass) . What is the probability in completing the project between '13 and 21 time periods? (15 Marks) Optimistic Most Likely Pessimistic Predecessors 3 ............. 5 3 4 A 2. ,, ,, 3 ,, A 3 5 B 4 7 B 2. C 4 E,F 3 D 2. G,H