Number equivalent to the roman number CDLXXXIX is :A689B691C489D491Answer: C. 489 Read Explanation: X -10 XX-20 XXX-30 XL-40 L-50 LX-60 LXX-70 LXXX-80 XC-90 C-100 CC-200 CCC-300 CD-400 DC-600 DCC-700 DCCC-800 CM-900 M-1000 CDLXXXIX=489Read more in App