To quickly revise addition of Roman Numerals, your teacher asked the class to add XX and XXX.
She gave you 4 options. Which circle would you choose?
Circle D
XX = 10 + 10 = 20
XXX = 10 + 10 + 10 = 30
Thus, XX + XXX = 20 + 30 = 50.
The Roman numeral for 50 is L.
Thus, the circle to be chosen is D.