What is the sum of X+XX+XXX+XXXX?
Last Updated: 29.06.2025 08:42
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
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
What is the sum of X+XX+XXX+XXXX?
From Royal Toddler to Teen Heartthrob, 34 Pictures of a Young Prince William - Vogue
It’s a matter of interpretation.
and for binary would be
1234X
Quantum embezzlement is hiding in known one-dimensional materials: Study - Interesting Engineering
11010X
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
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)