Tag: roman numerals

Questions Related to roman numerals

The Roman numeral for $1000$ is

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

  1. $V$

  2. $L$

  3. $D$

  4. $M$

Show answer
Correct Option: D
Explanation:

Roman numeral for $1000$ is $M$

Roman numeral for the greatest three digit number is

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

  1. IXIXIX

  2. CMIXIX

  3. CMXCIX

  4. CMIC

Show answer
Correct Option: C
Explanation:
The largest $3$ digit number is $999$. Let's convert that into Roman numerals.

$M = 1000, D = 500, C = 100, X = 10, V = 5$ and $I = 1.$

$900 = CM$

$90 = XC$

$9 = IX$

$900+90+9=999$
$(1000-100)+(100-10)+(10-1)$

Therefore, $999 = CMXCIX$
$(1000-100)+(100-10)+(10-1)$

Let's crossverify,
$CMXCIX=(1000-100)+(100-10)+(10-1)$
$=900+90+9=999$

Numerals that cannot be subtracted in Roman system are

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

  1. $V, L $ and $ D$

  2. $I, X$  and $ V$

  3. $C$

  4. $M$

Show answer
Correct Option: A
Explanation:

We can only subtract powers of ten ($I, X,$ or  $C$ , but not  $V$  or $L$)

Hence, Numerals that cannot be subtracted in Roman system are $V, L$ and  $D$.

Hindu-Arabic numeral for MCDXVIII is

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

  1. 1618

  2. 1405

  3. 1418

  4. 1481

Show answer
Correct Option: C
Explanation:

(C) MCDXVIII
1000+(500-100)+10+5+3=1418 

Numerals that can be repeated in Roman system are 

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

  1. $I, X \ and\  C$

  2. $I, V \ and\  X$

  3. $V, L\   and\  D$

  4. $D$

Show answer
Correct Option: A
Explanation:

As per the rules of writing Roman numbers, Only $I, X, C$, and  $M$  can be repeated; $ V, L$ , and $ D$  cannot be repeated.

Hence, Numerals that can be repeated in Roman system are  $I, X \ and \ C $

Roman numeral for the greatest single digit number is  

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

  1. XI

  2. IC

  3. IX

  4. ID

Show answer
Correct Option: C
Explanation:

$IX=9$

X can be subtracted from

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

  1. $L$ and $ C$

  2. $D$  and $ M$

  3. $D $ only

  4. $M $ only

Show answer
Correct Option: A
Explanation:

While writing Roman Numbers, do not subtract a number from one that is more than  $10$  times greater (that is, you can subtract  $1$  from $10 [IX]$  but not $ 1$  from $ 20$  there is no such number as $ IXX.)$
Hence,$ X (10)$  can be subtracted from $ L (50) \ and \ C (100)$

Write $39$ in roman numbers

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

  1. XXXIX

  2. XXXXI

  3. XXXX

  4. None of these

Show answer
Correct Option: A
Explanation:
To convert $39$ to Roman Numerals we need to split it up into place values (ones, tens, hundreds, etc.), like this:

Place Value Number Roman Numeral
Tens            $30$ $XXX$
Ones               $9$ $IX$


Please note, we skipped place values that equal 0.

You then combine them all together (starting from the top) to get $XXXIX.$
So option A is the correct answer.

Roman numerals for $498$

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

  1. CDCXVIII

  2. CDCXIV

  3. CDXCVIII

  4. CDXCVII

Show answer
Correct Option: C
Explanation:

The Roman numerals are represented by the following letters:

I = 1

V = 5

X = 10

L = 50

C = 100

D = 500

M = 1000

If a numeral is followed by another numeral of lower denomination, the two are added together;

if it is preceded by one of lower denomination, the smaller numeral is subtracted from the greater.

400 + 90 + 8 = CDXCVIII

$CDXCVIII=498$

Roman numeral for $2440$ is 

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

  1. $MMCDXL$

  2. $MCDXL$

  3. $MMMDXL$

  4. $MMDLX$

Show answer
Correct Option: A
Explanation:
$M=1000,C=100,X=10 ,I=1$
$2440=2000+400+40$
          $=2000+(500-100)+(50-10)$
          $= MM    CD    XL$
$2440 = MMCDXL$