What is the sum of X+XX+XXX+XXXX?
Last Updated: 28.06.2025 00:07

11010X
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
Federal judge clears way for NYC broker fee ban to begin - Gothamist
*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.
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
Graphene Is Stretchable? Physicists Make “Miracle Material” Bend Like Never Before - SciTechDaily
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)
1234X
and for binary would be
The biggest binoculars we've ever tested: Celestron SkyMaster 25x100 hands-on review - Live Science