Multiple choice Arabic numeral 50 is written as _________ in Roman numeral. LX XC L C Reveal answer Fill a bubble to check yourself C Correct answer Explanation In Roman numerals, 50 is written as L. The Roman numeral system uses letters: I=1, V=5, X=10, L=50, C=100, D=500, M=1000. LX would be 60 (50+10), XC is 90 (100-10), and C is 100.