Johnson Cogs wants to set up a line to serve 100 customers per hour. The work elements and their precedence relationships are shown in the following table. What is the theoretical minimum number of workstations to meet the demand? (Enter your response as an integer.) Work Element A BCDEFGHI с J Total Time (sec) 21 20 30 20 4 15 10 8 12 20 160 Immediate Predecessor(s) None A A B B C C D, E F, G H, I

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Johnson Cogs wants to set up a line to serve 100 customers per
hour. The work elements and their precedence relationships are
shown in the following table. What is the theoretical minimum
number of workstations to meet the demand? (Enter your
response as an integer.)
Work Element
ABCDEFGH-
J
Total
Time (sec)
21
20
30
20
4
15
10
8
12
20
160
Immediate
Predecessor(s)
None
A
A
B
B
C
C
D, E
F, G
H, I
Transcribed Image Text:Johnson Cogs wants to set up a line to serve 100 customers per hour. The work elements and their precedence relationships are shown in the following table. What is the theoretical minimum number of workstations to meet the demand? (Enter your response as an integer.) Work Element ABCDEFGH- J Total Time (sec) 21 20 30 20 4 15 10 8 12 20 160 Immediate Predecessor(s) None A A B B C C D, E F, G H, I
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