Change the following Roman numbers in Hindu-Arabic numerals: CD. How it can be solved. ? Please explain elaborately.
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CD represents 400
where C = 100 & D = 500
as ix represents for 9 where i=1 and x =10
therefore, ix means
x - i = 10 - 1 = 9
similarly, CD means
D - C = 500 - 100 = 400
hope it will help, make brainliest
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