Question

xxx mean what it means and Roman number relationship between please explain to me​

Answer 1

X means 10 and 3 times x that is

Xxx means 30 in Roman numerals.

Answer 2

Relationship of Roman numbers:

In the Roman numeric system, I mean 1, V means five, X means 10, L means 50, C means 100, D means 500, M means 1000. Each character can be repeated up to thrice. And, the character before one represents less, and the character after one denotes more.

So, according to these systems, XXX means 10 + 10 + 10 = 30. It is because X denotes 10. And there are 3 X's. So, three X's make three 10's. This becomes 30.