What is the sum of X+XX+XXX+XXXX?

Last Updated: 03.07.2025 02:45

What is the sum of X+XX+XXX+XXXX?

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)

POLL: ESPN writer stokes the flames of Lions trading for All-Pro EDGE - Pride Of Detroit

It’s a matter of interpretation.

11010X

*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour

Are We Wrong About Dark Matter? Dwarf Galaxies Suggest So - SciTechDaily

1234X

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

and for binary would be

Navigating some of the thorny questions of estate planning - NPR