What is the sum of X+XX+XXX+XXXX?
10.06.2025 02:38
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
11010X
1234X
What are some effective ways to cope with loss and grief?
and for binary would be
What is the sum of X+XX+XXX+XXXX?
*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour
The mystery rise of lung cancer in non-smokers - BBC
However, X +X^2 +X^3 + X^4 is a valid algebraic answer,
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)