Final answer:
Work-study methods break jobs into tasks and calculate the number of people needed to complete them efficiently based on task requirements and estimated completion time.
Step-by-step explanation:
In work-study methods, jobs are broken down into discrete tasks to enhance efficiency. By breaking down tasks, organizations can analyze each task's requirements and estimate the time needed to complete it. This allows them to calculate the number of people required to efficiently complete the job. For example, if a job requires multiple tasks and each task can be completed in one hour, the organization can assign the appropriate number of workers based on the total work hours required.