*Please solve the whole question as this is the second time posting this because it was only partially solved before and it was incorrect*

Thumbs up if its correct

Thanks

Problem: The Scheduling Department of an engineering firm has prepared the following list of tasks for a project, showing their immediate successors, duration, and cost: Activity Successor Total Cost ($) Normal Duration (days) 7 A B 21.000 B C.D 9 45.000 E. F 7 28.000 D E. F 9 27.000 E 7 10.500 G (with 3 day lag) G H F 8 16.000 I 10 12.000 (T! I 6 9.000 I 1 2.000 1. Calculate the schedule using CPM method (PDM technique) and determine critical tasks 2. Develop the histogram of expenses and the S-curve of the project. The unit of time in the histogram and cumulative curve (S-curve) should be seven working days