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

10.06.2025 10:41

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

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

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

1234X

Why do I keep dreaming of my mom, who recently passed away from cancer, still being sick and in pain?

and for binary would be

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

It’s a matter of interpretation.

What would happen if the US government told the British government in no uncertain terms all RAF bases with USAF personnel now must follow the Constitution and us law, and if the UK tried to defy this, the US military would directly attack the UK?

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

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)

11010X

Would the word literate carry the same meaning with public (common wealth) in 1900 vs today 2020?