Using Johnson's rule for 2-machine scheduling, the sequence is:

Scheduled Order	Job
1	B F D A E C

2	B F A E C D

3	E B D C F A

4	F D C A E B

5	B C F A E D

6	B E A F D C

For the schedule developed using Johnson's rule, the total length of time taken to complete the six jobs (including the 2nd operation) =

nothing

hours (enter your response as a whole number).

.....

Six jobs are to be processed through a two-step operation. The first operation involves sanding, and the second involves painting. Processing times are as follows:

Job	Operation 1 (hours)		Operation 2 (hours)
A	4		8
B	10		5
C	3		11
D	14		14
E	6		1
F	7		12