Final answer:
The productivity of the farm differs greatly when Mr. Jones was in charge compared to the current situation. Today, one farm worker can produce enough food for a significantly larger number of people. This increase in productivity can be attributed to improved technology, division of labor, and specialization of tasks.
Step-by-step explanation:
The productivity of the farm differs greatly when Mr. Jones was in charge compared to the current situation. In the past, a farming couple produced enough food for themselves and their families, with a small surplus. However, in developed regions today, one farm worker can produce enough food for a significantly larger number of people, such as 50 or even 85 people. This increase in productivity can be attributed to various factors, including improved technology, division of labor, and specialization of tasks.