What is the sum of X+XX+XXX+XXXX?

Last Updated: 02.07.2025 00:08

What is the sum of X+XX+XXX+XXXX?

1234X

11010X

*Note that the abbreviation XL (for XXXX) appeared quite late in the Roman period, and never found universal favour

Scientists reveal how to cut onions without crying, and their method is incredibly simple. - Farmingdale Observer

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)

However, X +X^2 +X^3 + X^4 is a valid algebraic answer,

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

How is it, in the USA, a country with 334 million people, the choice of President comes down to two aged men, one of whom is a liar as well as a criminal, one who appears to be on his way to dementia. Surely a democratic country can put up better?

It’s a matter of interpretation.

What is the sum of X+XX+XXX+XXXX?

and for binary would be

What are scads fish? What types are there?