What is the sum of X+XX+XXX+XXXX?
12.06.2025 12:15
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?
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
India's central bank beats market expectations to deliver an outsized rate cut of 50 points - CNBC
1234X
11010X
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
If You Fit Into One Of These 6 Categories, You Should Be Taking Creatine - MindBodyGreen
and for binary would be
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
It’s a matter of interpretation.