1.
What number is XCI?
Correct Answer
A. 91
Explanation
XCI is a Roman numeral representation for the number 91. In Roman numerals, X represents 10, C represents 100, and I represents 1. When X (10) is subtracted from C (100), it leaves 90. Adding I (1) to 90 gives the value 91. Therefore, XCI is equal to 91.
2.
What number is XLII?
Correct Answer
A. 42
Explanation
XLII is a Roman numeral representation for the number 42. In Roman numerals, X represents 10, L represents 50, and I represents 1. By combining these symbols, we get XLII, which represents 10 (X) + 50 (L) - 1 (I) - 1 (I) = 42. Therefore, the correct answer is 42.
3.
What number is LXXI?
Correct Answer
B. 71
Explanation
LXXI is a Roman numeral representation of the number 71. In Roman numerals, L represents 50, X represents 10, and I represents 1. When these symbols are combined, LXXI is formed, which represents 50 + 10 + 10 + 1 = 71. Therefore, the correct answer is 71.
4.
What number is XLVII?
Correct Answer
B. 47
Explanation
XLVII is a Roman numeral representation for the number 47. In Roman numerals, X represents 10, L represents 50, and V represents 5. When a smaller numeral is placed before a larger numeral, it is subtracted from the larger numeral. In this case, the X is placed before the L, which means we subtract 10 from 50, resulting in 40. The V and I after the X are added to the 40, giving us a total of 47. Therefore, the correct answer is 47.
5.
What number is XCIII?
Correct Answer
A. 93
Explanation
XCIII is a Roman numeral representation of the number 93. In Roman numerals, X represents 10 and C represents 100, while I represents 1. When a smaller numeral appears before a larger one, it is subtracted from the larger numeral. In this case, the smaller numeral I appears before X, so it is subtracted from X, resulting in 10 - 1 = 9. The larger numeral C appears after X, so it is added to X, resulting in 10 + 100 = 110. Therefore, XCIII represents 93.
6.
What number is LXV?
Correct Answer
C. 65
Explanation
LXV is a Roman numeral representation of the number 65. In Roman numerals, L represents 50, X represents 10, and V represents 5. When these values are added together (50 + 10 + 5), the result is 65. Therefore, the correct answer is 65.
7.
What number is XXXVIII?
Correct Answer
B. 38
Explanation
XXXVIII is a Roman numeral representation for the number 38. In Roman numerals, X represents 10, and V represents 5. When a smaller numeral appears in front of a larger numeral, it is subtracted. So, XXX represents 30 (10+10+10) and V represents 5. When these are added together, it gives us a total of 35. Finally, the additional I (1) represents 1 more, resulting in a total of 36. Therefore, the correct answer is 38.
8.
What number is XVI?
Correct Answer
A. 16
Explanation
XVI is a Roman numeral representation of the number 16. In Roman numerals, I represents 1, and V represents 5. When a smaller numeral is placed before a larger one, it is subtracted from the larger numeral. Therefore, X (representing 10) is subtracted by I (representing 1), resulting in 9. Adding V (representing 5) to 9 gives us 14. Finally, adding I (representing 1) to 14 gives us 15. Therefore, XVI represents the number 16.
9.
What number is XLI?
Correct Answer
C. 41
Explanation
XLI is a Roman numeral representation for the number 41. In the Roman numeral system, X represents 10 and L represents 50. When a smaller numeral precedes a larger one, it is subtracted from the larger numeral. In this case, X (10) is subtracted from L (50), resulting in 40, and I (1) is added to it, making the total 41. Therefore, the correct answer is 41.
10.
What number is LV?
Correct Answer
B. 55
11.
What number is this? LXXXIII
Correct Answer
B. 83
Explanation
The given number "LXXXIII" is a Roman numeral representation of the number 83. In Roman numerals, "L" represents 50, "XXX" represents 30, and "III" represents 3. When these values are added together (50 + 30 + 3), the result is 83.
12.
What number is XCII?
Correct Answer
A. 92
Explanation
XCII is a Roman numeral representation of the number 92. In Roman numerals, X represents 10, C represents 100, and I represents 1. When a smaller numeral is placed before a larger numeral, it indicates subtraction. In this case, the smaller numeral I is placed before the larger numeral C, resulting in 100 - 1 = 99. Finally, X is added to the result, resulting in 99 + 10 = 92. Therefore, the correct answer is 92.