What is the sum of X+XX+XXX+XXXX?
12.06.2025 14:35
What is the sum of X+XX+XXX+XXXX?
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)
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
Exercise improves colon cancer survival, high-quality trial finds - Ars Technica
It’s a matter of interpretation.
11010X
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
and for binary would be
1234X
Shortcuts is getting an AI-powered revamp; here’s what that could mean - 9to5Mac