4. The table below shows the activities, duration, and precedence relationships required to complete a project for Berjaya Enterprise. Predecessors Duration (week) 3 4 A Activity A B C D E F G H 7 2 1 B, C, D B. F E 5 6 2 Determine the Earliest Event Time (Tail) for activity E. A. 2 weeks B. 7 weeks C. 10 weeks D. 12 weeks d2 E,1 H,3 3 6 A,4 7 1,4 D, 1 8 B,2 0,7 F,3 G2 N 4 5 d1 Based on the above PERT diagram, determine the project completion time. A 8 weeks B. 10 weeks C. 12 weeks D. 14 weeks 6. 1 4 6 7 Node EET LET 0 0 ONN 5 10 0000 14 14 22 22 13 The above table shows the EET and LET for all events in a project. Identify the critical path for the project. 13. A time study was performed on a fish aquarium assembly operation covering an 8-hour shift. The allowances given to the workers are 2.5% rest period and one contingency hour per day. Compute the total allowance factor. A 5% B. 10% C. 12% D. 15% 14. Based on the information given, calculate the normal time of the entire operation. Element Observed time in minutes Performance Rating (%) 110 1 4 5 3 2 12 15 18 90 3 I 7 20 9 100 A. 17.87 minutes B. 21.5 minutes C 25.9 minutes D 28.6 minutes 15. Given the total normal time of an operation is 46,7 minutes with a 10% allowance factor Determine the standard time per output A. 42.03 minutes B 46.70 minutes C 51.37 minutes D. 51 90 minutes 16 Assuming a worker works an 8-hour shift 26 days per month. Calculate the monthly production units with a standard time of 80 minutes A 156 units