What is the sum of X+XX+XXX+XXXX?
11.06.2025 15:15

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
and for binary would be
1234X
How the Indiana Pacers Spun Style Into Substance - The Ringer
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
It’s a matter of interpretation.
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
6 Ways You Can Control Microplastics From Getting Into Your Food - HuffPost
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)
What is the sum of X+XX+XXX+XXXX?