What is the sum of X+XX+XXX+XXXX?
Last Updated: 22.06.2025 23:46
It’s a matter of interpretation.
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
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)
Semiconductor Supplier GlobalFoundries to Spend $16B to Boost US Chip Production - Investopedia
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
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 sum of X+XX+XXX+XXXX?
New COVID variant swiftly gains ground in US; concern looms for summer wave - Ars Technica
11010X
1234X
and for binary would be
This Is How To Make Your Brain Act 4 Years Younger, According To Science - MindBodyGreen