What is the sum of X+XX+XXX+XXXX?
Last Updated: 18.06.2025 07:16

and for binary would be
What is the sum of X+XX+XXX+XXXX?
1234X
What ended your relationship with your best friend?
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
It’s a matter of interpretation.
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
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)
11010X
Can you name a female actress who has had bad timing or luck in her film career?