What is the sum of X+XX+XXX+XXXX?
10.06.2025 01:22

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
1234X
11010X
If you were president, how would you make America "great again?"
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?
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
It’s a matter of interpretation.
and for binary would be