What is the sum of X+XX+XXX+XXXX?
Last Updated: 24.06.2025 10:20

and for binary would be
11010X
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
New theory proposes time has three dimensions, with space as a secondary effect - Phys.org
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
What is the dirtiest thing you have witnessed your wife do?
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
1234X
It’s a matter of interpretation.
watchOS 26 adds new wrist flick gesture for these Apple Watch models - 9to5Mac