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

Last Updated: 02.07.2025 00:26

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)

and for binary would be

It’s a matter of interpretation.

Tyler Perry Calls Out Hollywood Studios at BET Awards: “This Is Not the Time to Be Silent” - The Hollywood Reporter

*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,

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

Are you afraid to get married and why?

1234X

11010X

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

I’ve tracked Amazon Prime Day for 11 years. Here are the 8 best early TV deals - CNN