He's 76 years old. That's a pretty safe bet.
I gather this article assumes there were other unreported generations as well as those listed in Genesis.
However, if you just take Genesis as a literal account, did you know that Methusaleh, the oldest patriarch at his death, actually died in the year of the flood?
Here’s a chart showing all the details. This shows which patriarchs were alive at the same time (if the Genesis account is taken literally). The second number at the end of each patriarch’s life span is the year after Adam’s birth that this patriarch died. E.g., Seth died 1042 years after Adam’s birth, at an age of 912. The number above any new patriarch’s name is the age of his father when he was born.
Adam __ (+130) ______________________________ (dies +930)(930)
________ Seth _(+105) ___________________________(dies +912) (1042)
________________ Enos _ (+90) ____________________(dies +905)(1140)
_______________________ Cainan _ (+70) ___________________ (dies +910) (1235)
_______________________________Malaheel _(+65 ) ________________ (dies +895) (1290)
_________________________________________ Jared ____ (+162 ) ____________________ (dies +962) (1417)
__________________________________________________ Enoch _ (+60) __________ (into heaven +365) (982)
______________________________________________________ Methusaleh ______ (+187) __________________________ (dies +969) (1646)
________________________________________________________________ Lamech _____ (+182 ) ____________________________________________(dies +777) (1641)
_______________________________________________________________ (Noah) _________________________ (+500) __ (flood +600)1646 _____ (+950) 1996
__________________________________________________________________ (three sons) _________ (Shem lived 500 yr after flood to about 2146)
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as I cannot edit this I may repost it if I think it is inaccurate in layout ... and I will comment further on it too.
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Smiles 🤡
I never bet to lose