If the Earliest Due Date (EDD) rule is used to sequence the jobs, the number of jobs delayed is

Question

Common Data for Question 01 & 02

Four jobs are to be processed on a machine as per data listed in the table.                                                        

Job	Processing Time (in days)	Due date
1	4	6
2	7	9
3	2	19
4	8	17

 

1. If the Earliest Due Date (EDD) rule is used to sequence the jobs, the number of jobs delayed is

(a) 1                                (b) 2                             (c) 3                                (d) 4

 

 2. Using the Shortest Processing Time (SPT) rule, total tardiness is

(a) 0                                (b) 2                             (c) 6                                (d) 8