What is the sum of X+XX+XXX+XXXX?
Last Updated: 28.06.2025 00:41

However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
What is the sum of X+XX+XXX+XXXX?
It’s a matter of interpretation.
What led Megan to marry into the Royal Family despite her successful acting career in Hollywood?
1234X
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)
and for binary would be
11010X
*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