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

Last Updated: 16.06.2025 01:46

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

11010X

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

What factors contributed to Taiwan's economic success compared to Mainland China, despite their close proximity?

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

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

It’s a matter of interpretation.

If Russia needs the resources to fund the war in Ukraine, why doesn’t it throw open its doors to visa free western tourism? Enough people would be interested, & it would start to get some hard currency as €, CHF, £, SEK, $, JPY in the tills at shops.

1234X

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

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

He said he loves me, but why is it difficult for him to leave his wife?