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How do you write 90 in a Roman number?

71. How do you write 90 in a Roman number?

1. C
2. CX
3. XC
4. XXC

Answer

The correct answer is: C) XC

Explanation

90 is written as XC in Roman numerals. The Roman numeral system represents different numbers by combining letters from the Latin alphabet. In this system, X symbolizes ten and C represents one hundred. To express 90, we use a subtractive notation using X (10) and C (100), with X (10) positioned before C (100) to signify 100 - 10 = 90. As a result, the Roman numeral for 90 is XC.