Question

Translate the following Roman numerals into Hindu-Arabic numerals.

$\mathrm{XV}$

Answer 1

Writing the Roman numerals into Hindu-Arabic numerals:

Given: Roman numerals, $\mathrm{XV}$

$\mathrm{XV}=10+5=15[\because \mathrm{X}=10\mathrm{and}\mathrm{V}=5]$

Hence, the Hindu-Arabic numeral of $\mathrm{XV}$ is $15$.