What is the sum of X+XX+XXX+XXXX?
08.06.2025 05:00
11010X
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
1234X
Why do old men think young women and girls would want them over guys their own age?
and for binary would be
What is the sum of X+XX+XXX+XXXX?
It’s a matter of interpretation.
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*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)
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