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The manufacturer of children’s toys designed a special toy truck that can be assembled in 8 basic steps. The required time and predecessors for the tasks can be seen in the table below. There are 7.5 productive hours available in a day and the manufacturer wishes to produce 400 units. Task Time (sec) Predecessor A 45 -- B 50 A C 20 A D 55 A E 15 D F 65 D G 25 E H 35 B, C, F, G f. Calculate the efficiency of the line. g. Calculate the total idle time.

The manufacturer of children’s toys designed a special toy truck that can be assembled in 8 basic steps. The required time and predecessors for the tasks can be seen in the table below. There are 7.5 productive hours available in a day and the manufacturer wishes to produce 400 units. Task Time (sec) Predecessor A 45 -- B 50 A C 20 A D 55 A E 15 D F 65 D G 25 E H 35 B, C, F, G f. Calculate the efficiency of the line. g. Calculate the total idle time.

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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The manufacturer of children’s toys designed a special toy truck that can be assembled in 8 basic steps.
The required time and predecessors for the tasks can be seen in the table below. There are 7.5 productive
hours available in a day and the manufacturer wishes to produce 400 units.
Task Time (sec) Predecessor
A 45 --
B 50 A
C 20 A
D 55 A
E 15 D
F 65 D
G 25 E
H 35 B, C, F, G


 f. Calculate the efficiency of the line.

g. Calculate the total idle time.

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