What is the sum of X+XX+XXX+XXXX?
11.06.2025 03:59
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
1234X
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
President Xi Jinping Speaks with U.S. President Donald J. Trump on the Phone - fmprc.gov.cn
What is the sum of X+XX+XXX+XXXX?
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)
How can I get my ex-husband to love me again?
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
11010X
and for binary would be