What is the sum of X+XX+XXX+XXXX?
09.06.2025 08:52

11010X
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)
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
Why do Indian parents force their kids to do stuff?
What is the sum of X+XX+XXX+XXXX?
It’s a matter of interpretation.
and for binary would be
Why do some people dislike Gilmore girls?
1234X
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
Circle IPO Is Said to Price Above Range to Raise $1.1 Billion - Bloomberg