What is the sum of X+XX+XXX+XXXX?
Last Updated: 02.07.2025 13:37
What is the sum of X+XX+XXX+XXXX?
It’s a matter of interpretation.
1234X
Listen to the Andromeda galaxy's stars played as musical notes in eerie NASA video - Live Science
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
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
Kristin Davis Set The Record Straight On Whether She Dated Chris Noth - BuzzFeed
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
and for binary would be
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour