I need well organised and explained answer.The AON should be well labelled and all answers should be well structured for understanding purposes.

Thanks

(a) The information given in the table below is related to a construction project for which the company ABCD Ltd is about to sign a contract. Seven activities are necessary and the normal duration, cost, crash duration and crash cost have been derived from the best available sources. Each activity may be reduced to the crash duration in weekly stages at a prorate cost. There is a fixed cost of $500 per week. Activity Preceding activity Duration in weeks Normal Crash Direct cost ($) Normal Crash 4500 5250 A 15 12 B 19 14 4000 4500 9 5 2500 4500 D a 6 5 1700 1940 E a 14 9 4300 5350 F b, d 9 6 2600 3440 G 8 3 1800 3400 (i) Draw an activity-on-node diagram, labeling each node clearly. (ii) Determine the critical path and state the normal duration and its associated cost. (iii) Calculate the minimum cost of completing the project and state the duration. [6+3+4 marks]