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

Last Updated: 20.06.2025 00:10

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

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)

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

Why is the world male-dominated?

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

and for binary would be

It’s a matter of interpretation.

Everyone says the pet population is out of control. Everyone says you MUST spay or neuter your pets. No one wants to talk about how its almost $1,000 to spay or neuter a pet. Why is it so expensive if its so necessary? Animal shelters do it for free.

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

1234X

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

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