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

13.06.2025 19:32

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

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

11010X

What happens if someone fills up their car at the pump but leaves without paying? How is this situation typically handled?

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)

1234X

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

—— indirects on kuorans, irl and idols

It’s a matter of interpretation.

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

and for binary would be

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