What is the sum of X+XX+XXX+XXXX?
11.06.2025 10:57

1234X
11010X
and for binary would be
Walking This Many Steps Per Day Can Cut Your Risk Of Early Death - HuffPost
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
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 is the sum of X+XX+XXX+XXXX?
What are some good inspirational movies?
It’s a matter of interpretation.
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour