Multiple choice general knowledge math & puzzles

Find the Roman number for number: 19

  1. XIX

  2. XV

  3. XIV

  4. XXI

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A Correct answer
Explanation

In Roman numerals, subtractive notation is used where a smaller numeral before a larger one means subtraction. XIX = 10 + (10 - 1) = 19. XV is 15, XIV is 14, and XXI is 21.