What is the sum of X+XX+XXX+XXXX?
15.06.2025 00:18
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
11010X
and for binary would be
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)
1234X
What is the sum of X+XX+XXX+XXXX?
What is a common thought that keeps people up at night? Why do some people experience this?
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
*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.