Tag: knowing our numbers

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Questions Related to knowing our numbers

Multiple choice roman numbers and numbers upto hundred roman numerals knowing our numbers maths

Roman numeral for the greatest three digit number is ___________.

  1. IXIXIX

  2. CMXCIX

  3. CMIXIX

  4. CMIIC
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Consider the $3$ digit largest number in roman.


The largest $3$ digit number is$999$.


Let's convert that into Roman numerals,


$M=100$,$D=500$,X=100$,$X=10$,$V=5$ and $I=1$.

$900 = CM$

$90 = XC$

$9 = IX$

Therefore, $999 = CMXCIX$

 

Hence, this is the answer.

Multiple choice roman numbers and numbers upto hundred roman numerals knowing our numbers maths

In the Roman numeral, I can be subtracted from:

  1. V and X

  2. M only

  3. V only

  4. none
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Subtraction Rule:
Writing a smaller number to the left of a larger number means that the smaller number has to be subtracted from the larger number. The symbol 1 can be used for subtraction from V and X only. The symbol X can be subtracted only from L and C.

Hence, the answer is V and X.
Multiple choice roman numbers and numbers upto hundred roman numerals knowing our numbers maths

Numerals that can be repeated in Roman system are

  1. I, X and C

  2. I, V and X

  3. V, L and D

  4. D
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

V can be used once in the Roman system
Similarly, L and D can be used only once in the Roman System
But I, X and C can be repeated in the Roman system to represent certain number.
Thus, the numerals that can be repeated in Roman system are I, X and C.

Multiple choice roman numbers and numbers upto hundred roman numerals knowing our numbers maths

Raju is $22$ years old and Ramu is $19$ years old. Write the difference of their ages in Roman system.

  1. III

  2. XXDI

  3. XXXLII

  4. XXXLL
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Raju's age is $22$ years and Ramu's age is $19$ years.

The difference between their ages is $22-19=3$ years
And $3$ can be written in roman value as III.