Answer:
people can perform more efficiently if they master just one task rather than all tasks.
Step-by-step explanation:
Specialisation is the process by which a person becomes proficient at one particular ntask and in so doing they increase efficiency of production process.
In this scenario a single person performing the task can do one to three auto repairs per day. But if one person removed the old part, another person prepared the new part, and a third person installed the new part, they were able to complete up to twenty repairs per day.
That is an average of 20 ÷ 3= 6.667 per person per day.
This shows that people can perform more efficiently if they master just one task rather than all tasks.