Although it is difficult to obtain an actual value of world population at the time of the flood, 5 to17 billion people would appear to be reasonable populations, with an average of around 10 billion. The best ages for childbirth would be 80.8 to 92 years with 6 to 7 children per family. This would be 20 to 18 generations produced from Adam to the Flood in 1656. The Book of Genesis indicates (Chapter 5) that each family had at least 5 children. (Source: ldolphin.org/pickett.html)
The following diagrams were created during my scripture study:
