What is the sum of X+XX+XXX+XXXX?
10.06.2025 04:21
11010X
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
It’s a matter of interpretation.
Samsung Nears Wide-Ranging Deal With Perplexity for AI Features - Bloomberg.com
and for binary would be
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
What World Does Bitcoin Want To Build For Itself? - Defector
1234X
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,