What is the sum of X+XX+XXX+XXXX?
Last Updated: 19.06.2025 02:45
What is the sum of X+XX+XXX+XXXX?
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
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)
Here are the discounts and free stuff you can get on Father’s Day 2025 - Fortune
1234X
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
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
It’s a matter of interpretation.