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What is the sum of X+XX+XXX+XXXX?

12.06.2025 04:17

What is the sum of X+XX+XXX+XXXX?

and for binary would be

1234X

*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour

Are there really people who still believe the Earth is flat?

What is the sum of X+XX+XXX+XXXX?

However, X +X^2 +X^3 + X^4 is a valid algebraic answer,

11010X

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It’s a matter of interpretation.

as would be assuming that these are representations of conventional numbers, in which case the answer for number bases of five or more would be

Given the use of upper case, I personally would initially assume Roman numerals*, so the answer would be C (100 in present-day decimal notation)

Why do I have the impression that almost all questions about advertising the flat Earth theory come from people who don't believe in a flat Earth themselves and are just provoking?