Question

What is the value of XXX + XL?

• A. LCX
• B. LLX
• C. LXX
• D. XX

Answer 1

The correct option is C LXX

We know that X = 10 and L = 50.

When a Roman numeral with the larger value is on the left, we add the values together and when it is on the right, we subtract the values.

$\therefore$ XL = 40

Also, XXX = 10 + 10 + 10 = 30.

$\therefore$ XXX + XL = 40 + 30 = 70

But, 70 = 50 + 10 + 10 = L + X + X = LXX.

$\therefore$ XXX + XL = LXX