QUESTION 2 (20 MARKS) Gibbo Eng. Sdn. Bhd. is a real estate developer and wants to develop a new housing area. The activities involved to develop a new housing area are shown in Table 1. Table 1: Activities involve to develop a new housing area Activity Predecessor(s) Time Max crash time Crash cost (month) (month) (RM/month) A 10 4 1000 B 8 3 5000 12 3 15000 D A 11 5 1500 E B, C 7 1 17000 F 13 1 3000 G B, C 11 6 21000 H E 6 1 8000 I G H 9 3 11000 J D, E, F 8 1 10000 K I, J 3 2 15000 a) Develop a network diagram for the project. Determine completion time of the project and the critical path. (7 marks) b) If the company would like to reduce the project completion time by two months, suggest what action it should take. Determine additional cost and new critical path. (13 marks)