Question

व्हिच इज नॉट रोमन numeral​

Answer 1

Answer:

It's easy to see how the reasoning would be: 15 minus 1 minus 1. But following the rule, it instead is XIII, or 10 plus 3. You also cannot subtract a number from one that is more than 10 times greater. You can subtract 1 from 10 (IX) but you cannot subtract 1 from 100; there is no such number as IC