What is the sum of X+XX+XXX+XXXX?
Last Updated: 25.06.2025 02:25
11010X
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
FDA rushed out agency-wide AI tool—it’s not going well - Ars Technica
and for binary would be
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)
Neanderthals Spread Across Asia With Surprising Speed—and Now We Know How - Gizmodo
1234X
What is the sum of X+XX+XXX+XXXX?
It’s a matter of interpretation.