Question

A generation is about one-third of a lifetime. Approximately how many generations have passed during the last 2,000 years?

Answer 1

After assuming an average lifetime of 75 years, and hence a generation being about 25 years, we find that approximately 80 generations have passed since the year 0 AD by dividing 2,000 by 25.

Step-by-step explanation:

To calculate approximately how many generations have passed since the year 0 AD, we need to consider that a generation is about one-third of a lifetime. If we assume an average lifetime of around 75 years, then a generation would be approximately 25 years. As 2,000 years have passed since the year 0 AD, we divide 2,000 by 25 to find the number of generations.

2,000 years ÷ 25 years/generation = 80 generations

Therefore, approximately 80 generations have passed during the last 2,000 years. This is a simple mathematical approximation, and actual generational lengths can vary with time and across different cultures.

Answer 2

Assume that the average life expectancy is about 72 years, according to recently published data.
Therefore a generation is
72/3 = 24 years.

Therefore over the last 2,000years, the number of generations that have passed is
2000/24 = 83.3

Answer: 83 generations