What is the sum of X+XX+XXX+XXXX?
09.06.2025 02:55

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
1234X
Former Clemson DB on College Football Hall of Fame ballot - TigerNet
It’s a matter of interpretation.
11010X
What is the sum of X+XX+XXX+XXXX?
Why do liberals think it is okay to steal votes while the rest of us obey the law(s)?
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
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,