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

Last Updated: 30.06.2025 08:17

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

and for binary would be

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

However, X +X^2 +X^3 + X^4 is a valid algebraic answer,

WWDC 2025: What to Expect From macOS 26 Tahoe - MacRumors

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

1234X

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)

Which is the best protein water in India for muscle gain?

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

11010X

It’s a matter of interpretation.

Why don't I get sleep at nights?