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

Last Updated: 02.07.2025 11:06

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

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

and for binary would be

It’s a matter of interpretation.

PS5 has a huge price advantage over Xbox and Switch 2 right now - Eurogamer

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

1234X

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

Scientists map how alcohol changes bodily sensations - PsyPost

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

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)

Do you think covid 19 was never as bad as it got made out to be where we needed lockdowns and restrictions?