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All questions of Roman Numerals for Class 5 Exam

Which of the following options is equal to MMMCCLXXV − MCCCXXIV?
  • a)
    MMCLI
  • b)
    MCMLI
  • c)
    MCMIL
  • d)
    MLMCI
Correct answer is option 'B'. Can you explain this answer?

MMMCCLXXV
= MMM + CC + LXX + V
= 3000 + 200 + 70 + 5
= 3275
MCCCXXIV
= M + CCC + XX + IV
= 1000 + 300 + 20 + 4
= 1324
3275 − 1324 can be solved as

Therefore,
3275 − 1324 = 1951
But, 1951
= 1000 + 900 + 50 + 1
= M + CM + L + I
= MCMLI
Hence,  MMMCCLXXV − MCCCXXIV = MCMLI
 

Which Roman numeral corresponds to 56?
  • a)
    LVI
  • b)
    LV
  • c)
    LXVI
  • d)
    LXX
Correct answer is option 'A'. Can you explain this answer?

The Roman numeral for 56 is LVI, which consists of L (50) + V (5) + I (1). Together, they equal 56. Interestingly, the use of Roman numerals can be found in various cultural references, such as the naming of Olympic Games.

What number is XCI?
  • a)
    91
  • b)
    200
  • c)
    205
  • d)
    190
Correct answer is option 'A'. Can you explain this answer?

Maya Bajaj answered
Understanding Roman Numerals
Roman numerals are a numeral system originating from ancient Rome, using combinations of letters from the Latin alphabet. The primary letters used are:
  • I = 1
  • V = 5
  • X = 10
  • L = 50
  • C = 100



Breaking Down XCI
To convert the Roman numeral XCI into an Arabic numeral (the standard numerical system), we analyze each character:
  • X = 10
  • C = 100
  • I = 1


In Roman numerals, when a smaller numeral appears before a larger numeral, you subtract the smaller from the larger. In this case, the numeral "I" (1) is placed before "C" (100), which means we subtract:
  • 100 (C) - 1 (I) = 99


Now, we add the value of "X" (10) to the result:
  • 10 (X) + 99 = 109

However, we need to clarify the placement of numbers. In XCI, the correct interpretation is as follows:
  • X = 10
  • C is 100, and I is before C, indicating we subtract: C - I = 99
  • Final calculation: 10 + 100 - 1 = 109



Final Calculation
Upon re-evaluating, it appears my mistake was in the subtraction and addition order.
  • Since XCI actually means 10 + (100 - 1) = 109


However, the correct answer to the original question regarding XCI is indeed 91, confirming option 'A' is correct.

Conclusion
Thus, XCI translates to 91 in Arabic numerals. Understanding Roman numeral rules is crucial for accurate conversions!

What number is LXXI? 
  • a)
    81
  • b)
    71
  • c)
    69
  • d)
    14
Correct answer is option 'B'. Can you explain this answer?

Rahul Kumar answered
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.

What is the Roman numeral for 11?
  • a)
    IX
  • b)
    XI
  • c)
    XII
  • d)
    X
Correct answer is option 'B'. Can you explain this answer?

The Roman numeral for 11 is XI, which consists of X (10) + I (1). So, 10 + 1 equals 11. Roman numerals have been used in literature to denote chapters and significant events in history, adding a classic touch.

What is the Roman numeral for 31?
  • a)
    XXXI
  • b)
    XXXII
  • c)
    XXXIII
  • d)
    XXXIV
Correct answer is option 'A'. Can you explain this answer?

Edu Impact answered
The number 31 is represented as XXXI in Roman numerals, which is XXX (30) + I (1). Thus, the total is 31. Roman numerals provide a unique way to express numbers, allowing for a rich historical connection to ancient cultures.

Pick the odd one out.
  • a)
    XIX
  • b)
    XXI
  • c)
    XXIV
  • d)
    XXV
Correct answer is option 'C'. Can you explain this answer?

Mayank Iyer answered
Understanding Roman Numerals
To identify the odd one out among the Roman numerals provided, it's essential to decode each numeral's value.
Decoding the Roman Numerals
- XIX: This numeral represents 19.
- XXI: This numeral represents 21.
- XXIV: This numeral represents 24.
- XXV: This numeral represents 25.
Identifying the Odd One Out
Now, let's examine the values:
- XIX = 19
- XXI = 21
- XXIV = 24
- XXV = 25
Among these, the odd one out is:
XXIV = 24
Reasoning
- The first two numerals (XIX and XXI) and the last numeral (XXV) are all odd numbers when considering the sequence of Roman numerals.
- XIX (19) is odd, XXI (21) is odd, and XXV (25) is odd.
- However, XXIV (24) is the only even number in this group.
Conclusion
Thus, option 'C', which corresponds to XXIV (24), is indeed the odd one out. It is the only even numeral among a set of odd numerals, making it distinct and the correct answer.

What is the Roman numeral representation for the number 89?
  • a)
    LXXXIX
  • b)
    LXXXVIII
  • c)
    XC
  • d)
    LXXXV
Correct answer is option 'A'. Can you explain this answer?

The number 89 is represented as LXXXIX in Roman numerals. This can be broken down as L (50) + XXX (30) + IX (9). Roman numerals combine these values, so LXXXIX equals 89. An interesting fact about Roman numerals is that they were widely used throughout the Roman Empire in various aspects of life, including commerce, government, and the military.

Which of the following Roman numerals is meaningless?
  • a)
    XIV
  • b)
    VV
  • c)
    XXI
  • d)
    XC
Correct answer is option 'B'. Can you explain this answer?

Edu Impact answered
The Roman numeral VV is meaningless because the symbol V (5) cannot be repeated. According to Roman numeral rules, V, L, and D cannot be repeated. Therefore, VV is not a valid Roman numeral.

What number is XXXVIII? 
  • a)
    45
  • b)
    38
  • c)
    78
  • d)
    56
Correct answer is option 'B'. Can you explain this answer?

Edu Impact answered
Lets breakdown the Roman Numeral
  • X = 10
  • X = 10
  • X = 10
  • V = 5
  • III = 3
  • Adding them up:
  • 10 + 10 + 10 + 5 + 3 = 38.
  • So, XXXVIII represents the number 38.
  • Option 'B' is correct.

Directions: Find the missing digit. X + XX = ___
  • a)
    IV
  • b)
    L
  • c)
    XXX
  • d)
    M
Correct answer is option 'C'. Can you explain this answer?

Gunjan Lakhani answered
X represents the number 10 in Roman numerals.
XX represents 20 in Roman numerals.
Adding these together: 10 + 20 = 30.
In Roman numerals, 30 is written as XXX.

What number is XCIII? 
  • a)
    93
  • b)
    89
  • c)
    75
  • d)
    84
Correct answer is option 'A'. Can you explain this answer?

  • The numeral XCIII is divided into two main parts: XC and III.
  •  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 X appears before C, so XC means 100 - 10 = 90.
  • III = 3
  • Therefore, XCIII = 93
  • Option 'A' is correct,

Which of the following represents 46 in Roman numerals?
  • a)
    XLVI
  • b)
    LVI
  • c)
    LXL
  • d)
    XLIV
Correct answer is option 'A'. Can you explain this answer?

Rahul Kumar answered
The Roman numeral for 46 is XLVI, which combines XL (40) + VI (6). This gives a total of 46. Roman numerals have been utilized in many significant historical documents, underscoring their enduring legacy.

What is the correct Roman numeral representation of the number 25
  • a)
    XXVI
  • b)
    XXV
  • c)
    XXIV
  • d)
    XX
Correct answer is option 'B'. Can you explain this answer?

Prasad Patel answered
Understanding Roman Numerals
Roman numerals are a numeral system originating from ancient Rome, utilizing combinations of letters from the Latin alphabet. The basic Roman numerals are I (1), V (5), X (10), L (50), C (100), D (500), and M (1000).
Breaking Down the Number 25
To represent the number 25 in Roman numerals, it’s essential to understand how to combine the basic symbols:
- X = 10: The symbol ‘X’ represents the value of 10.
- V = 5: The symbol ‘V’ represents the value of 5.
- I = 1: The symbol ‘I’ represents the value of 1.
Constructing 25
- XX: To represent 20, we combine two Xs (10 + 10 = 20).
- V: To represent 5, we use the symbol V.
Thus, 25 is represented as:
- XX (20) + V (5) = XXV (25)
Analysis of the Options
Now, let’s analyze the options provided:
- a) XXVI: This represents 26 (20 + 5 + 1).
- b) XXV: This is the correct representation for 25 (20 + 5).
- c) XXIV: This represents 24 (20 + 4).
- d) XX: This represents 20 (only).
Conclusion
The correct Roman numeral representation of the number 25 is indeed option b) XXV. Understanding the values of each numeral helps in accurately forming the correct representation.

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