Tag: maths

Questions Related to maths

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. CMIIC

Show answer
Correct Option: C
Explanation:

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

Sum of 10 and 40 in roman number is

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

  1. C

  2. V

  3. L

  4. D

Show answer
Correct Option: C
Explanation:

The sum of 10 and 40 is,

10+40=50
50 is written as the symbol L in Roman numerals.
So 50=L
Option C is the correct answer.

IX + XV + XX = ______

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

  1. 45

  2. 35

  3. 44

  4. 40

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.

 

9 + 15 + 20 = 44

The 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:

Greatest single digit number is 9.

IX = 9

The number of matchsticks that can be used to write 39 in roman system are:

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

  1. 8

  2. 9

  3. 3

  4. 6

Show answer
Correct Option: B
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. 


XXXIX = 10+10+10+10-1 = 39
$\therefore$ Number of matchsticks required would be 9.

Numeral for $CCCXLVII$

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

  1. $357$

  2. $347$

  3. $367$

  4. $387$

Show answer
Correct Option: B
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.

CCCXLVII
$100 + 100 + 100 + 40 + 7 = 347$

The time shown when the long hand is at 12 and short hand is at 11 it

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

  1. XII

  2. X

  3. XI

  4. XXI

Show answer
Correct Option: C
Explanation:

Time shown by the clock is $11$ o'clock.

Converting it to Roman Number by using:

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.

$\therefore  11 = 10+1=XI$

Anita's age is 48 years Express it in Roman system

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

  1. XXXXVIIII

  2. XLVII

  3. XLVIII

  4. XLV

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.


XLVIII = 50-10+5+1+1+1 = 48

Difference of 500 and 200 in roman number

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

  1. C

  2. CCC

  3. MMM

  4. D

Show answer
Correct Option: B
Explanation:

The difference of 500 and 200 is,

500-200=300
We write 300 as CCC in Roman numerals as C represents 100
So option B is the correct answer.

Difference of 1000 and 400 is

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

  1. D

  2. L

  3. C

  4. DC

Show answer
Correct Option: D
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.


1000 - 400 = 600 = DC