What is the sum of X+XX+XXX+XXXX?
Last Updated: 18.06.2025 21:31

It’s a matter of interpretation.
11010X
and for binary would be
Is there a band whose members have been present for every one of their concerts?
What is the sum of X+XX+XXX+XXXX?
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
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
Is the saying "nice guys finish last" true? Can good intentions always lead to positive outcomes?
1234X
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,