The total normal cost for a project is $5,000, the cost of supervision is $300 per day; penalty for delayed project is $100 per day, for every day delayed beyond 16 days. Crash the duration of the project and find (a) the duration of the project with optimal cost and (b) the minimum possible du- ration for the project and the associated cost. The predecessor relationships and other requirements are tabulated in Table

 

Activity B C A D E F G H I J Predecessor(s) B B B A, C E A,C F,D H, I, G Normal Time (Days) 3 4 3 5 6 4 5 3 5 2 Crash Time (Days) 1 3 2 4 3 3 4 2 4 2 Incremental Crashing Cost (/day) 600 200 400 500 300 200 500 400 300