physics

Intermezzo Intermezzo Problem

This one is easy, every physicist should be able to answer it.

There are two black holes A and B.

A is heavier than B by one hydrogen atom. Assuming that nothing will fall inside any of those two black holes in the future, the heavier one will evaporate by Hawking radiation  one million years after the lighter one.

Question: What is the approximate mass of those two black holes?

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