project management

Q2: From the information listed below, calculate the project duration that make minimum cost using crashing technique. The amount of indirect cost is equal to 400$/ week. Task Predecessors NT CT NC $ CC $ A 7 6 7000 8000 B A 3 2 5000 7000 G A 4 3 900 10200 D B, C 5 4 3000 4500 E D 2 1 2000 3000 F D 4 2 4000 7000 G F, E 4 5000 8000