What is the sum of X+XX+XXX+XXXX?
11.06.2025 02:04
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
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
What does 'Whose flesh is like the flesh of donkeys’ mean (Ezekiel 23:20)?
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
1234X
What is the sum of X+XX+XXX+XXXX?
Wall Street warns Trump aides the GOP tax bill could jolt bond markets - The Washington Post
It’s a matter of interpretation.
and for binary would be
11010X