Assume that an assembly line has three tasks that must be completed (in order, A, B, and C). The tasks have processing times of 9, 9, and 11 minutes per unit, respectively. If the assembly operates for 400 minutes per day with a desired output of 70 units per day, what is the efficiency of the assembly line?
A) 84%
B) 64%
C) 94%
D) Cannot be determined from the information given

Question

Quizplus · Accepted Answer

The total time required to produce 70 units is 70 units * 11 minutes/unit = 770 minutes. The assembly line operates for 400 minutes, so the efficiency is (400/770) * 100% = 51.95%. However, since the question asks for the efficiency of the assembly line based on the desired output, the correct calculation should consider the bottleneck task, which is task C with 11 minutes. The efficiency is calculated as (70 units * 11 minutes/unit) / (3 tasks * 400 minutes) * 100% = 84%.

Assume That an Assembly Line Has Three Tasks That Must