What is the sum of X+XX+XXX+XXXX?
09.06.2025 07:22
It’s a matter of interpretation.
1234X
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
New research links changes in walking patterns to early Alzheimer’s - The Brighter Side of News
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
11010X
and for binary would be
Killer Inn is Square Enix’s new ‘murder mystery action’ game - The Verge
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)
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
What is the sum of X+XX+XXX+XXXX?
Physicists create 'the world's smallest violin' using nanotechnology - Phys.org