What is the Hindu-Arabic numeral of CCXXIV?

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134

345

224

321

answer is C.

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Detailed Solution

Roman numerals for 1 to 9, 50, 100, and 500 are represented as;
1 -I
2 - II
3 - III
4 - IV
5 - V
6 - VI
7 - VII
8 - VIII
9 - IX
10 - X
50 - L
100 - C
500 - D
Using the above listed data, CCXXIV can be written as,
CCXXIV = C + C + X + X + IV

CXXIV = 100 + 100 + 10 + 10 + 4

= 224

Thus, the Hindu-Arabic numeral of the given Roman numeral is 224.
Hence, option 3 is correct.

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