A Company wants to execute a project within 95 weeks. This project includes 10 activities (labeled A, B, ...), where their precedence relationships are shown in the following table: Activity Predecessor Activity A B A D B Normal Crash Normal Cost Crash Cost Time(weeks) Time(weeks) in million S) (in million S) 32 28 160 180 28 25 125 146 36 31 170 210 16 13 60 72 32 27 135 160 54 47 215 257 17 15 90 96 20 17 120 132 34 30 190 226 18 16 80 E B F G B D H 1 J E,G EG F C 84 a) Draw the project network according to the previous table. (b)Find all possible paths and the corresponding lengths to finish the project. (e) Which is the critical path and what is its length? (d) Determine the least expensive way to crash activities to reduce overall duration to 95 weeks using Marginal cost analysis