**Definition of Roman Numerals**

- The system of Roman numerals is numeral system used by the ancient Romans.
- Roman numerals are the symbols used by the ancient Romans to represent numbers.

**Examples of Roman Numerals**

- Following are the basic symbols and the numbers they represent in the Roman numeral system:

I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1,000. - The other numbers in the Roman numeral system are obtained by placing these basic symbols beside each other.

For example, XV = 10 + 5 = 15

IX = 10 – 1 = 9

VI = 5 + 1 = 6

**Solved Example on Roman Numerals**

Which of the following numbers can be represented as a Roman numeral using the letters V and I?

Choices:

A. 3

B. 9

C. 10

D. 4

Correct Answer: D

Solution:

Step 1:Considering choice A, 4 = 5 - 1 = IV

Step 2:Considering choice B, 3 = 1 + 1 + 1 = III

Step 3:Considering choice C, 9 = 10 - 1 = IX

Step 4:Considering choice D, 10 = X

Step 5:So, the number that can be represented as a Roman numeral using the letters V and I is 4.

**Related Terms for Roman Numerals**

- Numeral system
- Symbol