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

13.06.2025 00:00

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

1234X

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)

What made you feel disgusted today?

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

It’s a matter of interpretation.

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

Why does my best friend call me ugly and act like she’s joking, but today she looked at me and said “I wouldn’t lie to you”? What should I say back to her?

11010X

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

and for binary would be

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