What is the sum of X+XX+XXX+XXXX?
13.06.2025 00:14

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
Have you ever had a scary dream about a loved one or friend soon after their death?
It’s a matter of interpretation.
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)
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
11010X
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
What is your age now, and what age do you prefer to stay at forever?