Answer:
option (c) 75%
Explanation:
Data provided in the question:
Number of stations used = 10
The target output for an 8-hour workday = 120 bags
The sum of the task times = 30 minutes/bag
Cycle time = 4 minutes/bag
Now,
Assembly Line efficiency
= Sum of task times in all workstations ÷ [ Number of workstation × Cycle time ] × 100%
= [ 30 ÷ ( 10 × 4 ) ] × 100%
= 75%
Hence,
The correct answer is option (c) 75%