What is the sum of X+XX+XXX+XXXX?
Last Updated: 03.07.2025 03:15

What is the sum of X+XX+XXX+XXXX?
It’s a matter of interpretation.
1234X
'Strawberry moon' set to dazzle as rare lunar standstill graces the night sky - KOMO
and for binary would be
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
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)
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
Samsung could drop Google Gemini in favor of Perplexity for Galaxy S26 - Ars Technica