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

Last Updated: 19.06.2025 06:16

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 would be assuming that these are representations of conventional numbers, in which case the answer for number bases of five or more would be

and for binary would be

Why do Americans and foreigners alike describe the USA as prudish? Why do I see nothing prudish about the USA society? USA feels like one of the loosest countries although Americans claim to be very reserved.

*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,

11010X

Can they start feeding only one meal to prisoners on death row or those doing a life sentence? Because only then will it be real punishment. If they want extra food they can work or pay from their own pocket.

1234X

It’s a matter of interpretation.

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

How do we greet in German, French, Spanish, and Italian?