What is the sum of X+XX+XXX+XXXX?
Last Updated: 20.06.2025 02:09
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
What is the sum of X+XX+XXX+XXXX?
Why do I feel worthless most of the time?
11010X
It’s a matter of interpretation.
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 does my mother care about my sister more than me?
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
and for binary would be
1234X