What is the sum of X+XX+XXX+XXXX?
15.06.2025 02:42

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)
It’s a matter of interpretation.
11010X
Do you remember one day, you put a deep smile on someone's face and made them very happy?
*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
and for binary would be
When you visit a store, do you go to shop or buy?
What is the sum of X+XX+XXX+XXXX?
1234X
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,