Activity A B D E X Y Z M Normal Duration 3 5 4 5 6 5 5 4 13 Minimum Duration 2 3 2 3 3 4 3 2 10 Crash cost (S/week) $150 $50 $140 $175 S100 $40 $120 $270 $200 Suppose we are offered $250 for every week we can reduce the duration of the project. b) What is the most economical duration of the project? c) What activities must we crash to achieve the most economical duration? d) How much money do we make in reducing the project to its most economical duration? Activity A B D E X Y Z M Normal Duration 3 5 4 5 6 5 5 4 13 Minimum Duration 2 3 2 3 3 4 3 2 10 Crash cost (S/week) $150 $50 $140 $175 S100 $40 $120 $270 $200 Suppose we are offered $250 for every week we can reduce the duration of the project. b) What is the most economical duration of the project? c) What activities must we crash to achieve the most economical duration? d) How much money do we make in reducing the project to its most economical duration