70778 — SOLVE BY HAND Given the sequence of jobs below arri…

70778 — SOLVE BY HAND Given the sequence of jobs below arrive in the order as shown below: Row 1 is the first arrival and row 5 is the last arrival.  Jobs go from R1>R2>R3 with the processing times shown below. Answer the following questions   Job R1 R2 R3 1 5 3 9 2 7 5 15 3 10 1 8 4 2 2 6 5 11 4 7   If Johnson-Algorithm is applied, the jobs in Group A  are [a], the jobs in group b are [b], and  the sequence of jobs is [johnson]