What is the sum of X+XX+XXX+XXXX?
Last Updated: 22.06.2025 02:03

and for binary would be
What is the sum of X+XX+XXX+XXXX?
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
Would you let your son wear leggings to school?
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
1234X
What nonsense did you hear today in India that made you laugh?
11010X
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)