What is the sum of X+XX+XXX+XXXX?
Last Updated: 27.06.2025 03:18
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)
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
What is the sum of X+XX+XXX+XXXX?
How to see Mars visit a bright star and the moon this June - Space
1234X
11010X
and for binary would be
Change Your Gmail Password Now, Google Tells 2 Billion Users - Forbes
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
*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.