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

Last Updated: 02.07.2025 07:04

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

and for binary would be

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

1234X

Show 1433: What Are the Hidden Dangers in the Air We Breathe? - The People's Pharmacy

11010X

*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.

Blocking Brain Inflammation Molecule May Halt Alzheimer’s - Neuroscience News

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

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)

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

What Happens to Your Blood Pressure When You Eat Dark Chocolate Every Day? - Verywell Health