What is the sum of X+XX+XXX+XXXX?
Last Updated: 29.06.2025 04:01

It’s a matter of interpretation.
11010X
1234X
Atque sapiente quis aspernatur.
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)
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
‘Resident Evil Requiem’ Sets February 2026 Release From Capcom - Variety
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
What is the sum of X+XX+XXX+XXXX?
and for binary would be