Use Johnson's rule to determine the optimal sequencing for the five jobs to be processed on two machines in a fixed order (Machine 1 before Machine 2). The processing times in hours are given in the table below. [4] 764 Job Machine 1 Machine 2 2022/05 A 11 10 B 17 10 7 8 9 15 n D ma E F G 9 12 13 10 25 6