What is the sum of X+XX+XXX+XXXX?
11.06.2025 07:32
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
It’s a matter of interpretation.
1234X
Microsoft’s Bad News—500 Million Windows Users Must Now Decide - Forbes
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
and for binary would be
11010X
Which country has the best and strictest legal system in the world?
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
What is the sum of X+XX+XXX+XXXX?
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)
Terraforming Mars Isn’t Sci-Fi Anymore – Here’s What It Would Take - SciTechDaily