I’m the context of a conversation or something sure I might challenge the premise directly. If someone is expecting me to write a number on a sheet of paper it seems obvious I’m not being invited to challenge the premise and I’m writing 0.
I would expect that in 2023 everyone would know how to search for "literacy rate in 1900" in Google (or Bing if you will) instead of asserting your flawed expectations and wasting everyone's time.