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

Last Updated: 01.07.2025 02:56

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

1234X

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)

As TikTok faces a ban, at the same time, the Chinese app Xiaohongshu (Little Red Book) has surged to the second position in downloads in the U.S. Will Xiaohongshu become the TikTok alternative for Americans, and why?

and for binary would be

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

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

Prediction: This "Magnificent Seven" Growth Stock Will Hit an All-Time in June. Here's Why It's Worth Buying Now. - The Motley Fool

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

11010X

It’s a matter of interpretation.

Raw Milk Is Trending — Here's Why Doctors Are Seriously Concerned - BuzzFeed