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This question already has an answer here:

Professor McGonagall was already getting on with years the the Original HP series.

From a person who has not read Cursed Child yet, I'm only reading it from here

answer

And she's able to live for 19 years, without retiring...

And also Dumbledore is older than dirt,

Dumbledore was 150 years old

With Elphias Doge, and Professor something, who supposedly tested Dumbledore on the OWL's (I think, correct me if I'm wrong).

And JKR can simply not be that bad at math(s).

merged by Rand al'Thor Aug 14 '16 at 18:36

This question was merged with In Harry Potter, how old will a wizard live to be on average? because it is an exact duplicate of that question.

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