What is the sum of X+XX+XXX+XXXX?
Last Updated: 26.06.2025 03:43

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
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
Putin's uncompromising demands emerge after the latest round of Russia-Ukraine peace talks - AP News
What is the sum of X+XX+XXX+XXXX?
It’s a matter of interpretation.
1234X
If you are doing these 6 things, then you’re accidentally making your vegan meals unhealthy - VegOut
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
and for binary would be
11010X
WCWS Game 2: Texas Tech evens series with 4-3 win, setting up decisive Game 3 - Yahoo Sports