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

10.06.2025 02:47

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

11010X

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)

I’m worried I have a bat bite on my hand, I have two small marks about 1 cm apart. I haven’t been in contact with a bat but I’m worried about at night. My fingers have a slight tingling sensation and my arm feels cold but isn’t. Am I ok?

1234X

and for binary would be

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

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

It’s a matter of interpretation.

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

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