Logo

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

Last Updated: 20.06.2025 17:59

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

*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,

Have you ever been a victim of gaslighting? What happened?

and for binary would be

It’s a matter of interpretation.

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)

Is it possible to make cars that run on water instead of gasoline or other fossil fuels? Why haven't we done so yet?

1234X

11010X

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

Why can't my adopted sister accept she is not part of my family because she isn't related? Why can't she stop calling my parents mum and dad?