What is the sum of X+XX+XXX+XXXX?
10.06.2025 07:44
1234X
11010X
and for binary would be
Stop Work Orders At NASA JPL - NASA Watch
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
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)
Russia’s central bank cuts interest rates for first time since 2022 - Financial Times
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
What is the sum of X+XX+XXX+XXXX?
It’s a matter of interpretation.
Greetings from Warsaw, Poland, where the flags are flying ahead of a key election - NPR