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The correct answer is b
Because
718- 19= 709
So in Roman numerals it will be VIDCXCIII
we should always use the DMAS rule whenever we are adding or subtracting Roman numerals.
1516 =
1000+500+10+5+1 =
M+D+X+V+I =
MDXVI
630 =
500+100+10+10+10 =
D+C+X+X+X =
DCXXX
We have
DCCCXXX = 500 + 100 + 100 + 100
+ 10 + 10 + 10 = 830
737 =
500+100+100+10+10+10+5+1+1 =
D+C+C+X+X+X+V+I+I =
DCCXXXVII
2676 =
1000+1000+500+100+50+10+10+5+1 =
M+M+D+C+L+X+X+V+I =
MMDCLXXVI
2990 =
1000+1000+(1000-100)+(100-10) =
M+M+(M-C)+(C-X) =
M+M+CM+XC =
MMCMXC
Here 5 × 4 = V × IV
and 5 × 4 = 20 = XX
We have XII – II = 12 – 2 = 10 = X
We have DVI – XXIV = 500 + 6 – 14
= 506 – 24
and CDL XXX II
= (500 – 100) + 50 + 10 + 10 + 10 + 2
= 482
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