What is the sum of X+XX+XXX+XXXX?
08.06.2025 18:26

11010X
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
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
1234X
and for binary would be
If a cat is feminine in German, what article do you give to a male cat?
It’s a matter of interpretation.
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)
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
Reality TV star’s son dead at 16: ‘Life is so cruel and unfair’ - AL.com