What is the sum of X+XX+XXX+XXXX?
11.06.2025 03:45
It’s a matter of interpretation.
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
What is the sum of X+XX+XXX+XXXX?
This Genetic ‘Trick’ Helped the Black Death Linger for Centuries - Gizmodo
1234X
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)
Instagram for iPad is reportedly coming soon; here’s when to expect it - 9to5Mac
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
and for binary would be
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
How to Make AI Faster and Smarter—With a Little Help from Physics - WIRED