Ontario Registered Pharmacy Technician (RphT) Practice Exam

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The Roman numerals XLII is equivalent to

  1. 42

  2. 62

  3. 92

  4. 402

The correct answer is: 42

Roman numerals consist of letters representing different numbers. The letter X stands for 10, while L stands for 50, and I for 1. When a smaller number appears before a larger number, it is subtracted. In this case, the letter X appears before L, making it 10 less, which equals to 40. The letter I appears after the X, adding 1, making it 41. Finally, the letter I appears after the X again, adding another 1, making it a total of 42. Therefore, XLII in Roman numerals is equivalent to 42 in standard form. Option B, 62, is incorrect because the Roman numeral for 62 would be LXII, with L representing 50 and X representing 10, for a total of 60. Option C, 92, would be XCII in Roman numer

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