The following data relate to a project:

(a) Draw the network, find the critical path and the duration of the project (the minimum as well as the regular).

(b) If the project manager wants to reduce the completion time to 25 days, which activities would be required to be crashed and by how much? What shall be the cost involved?

(c) Can this project be completed in 22 days? If not, why? If yes, what is the cost involved?

Activity Activity time (Days) Activity cost (Rs) Regular Crash Regular Crash 1-2 7 6 700 750 1-3 8 6 650 750 2-4 9 7 800 900 2-5 11 8 1,600 1,800 3-5 8 5 750 1,000 3-6 10 7 1,900 2,100 4-7 12 10 1,200 1,300 5-7 13 11 1,300 1,400 6-7 14 10 1,500 1,800