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

Last Updated: 02.07.2025 08:25

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

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

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

What are your funniest "lost in translation" moments if you grew up speaking more than one language?

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

11010X

1234X

Who is Biden’s mom?

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

and for binary would be

It’s a matter of interpretation.

Scientists have just discovered an ocean at the Earth's core, challenging our understanding of the universe. - Farmingdale Observer