Knowing our Numbers Test

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Knowing our Numbers Test - 12

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Weekly Quiz Competition

Question 1
1 / -0

Roman numeral for $$2440$$ is

A
$$MMCDXL$$

B
$$MCDXL$$

C
$$MMMDXL$$

D
$$MMDLX$$

Solution

$$M=1000,C=100,X=10 ,I=1$$
$$2440=2000+400+40$$
$$=2000+(500-100)+(50-10)$$
$$= MM CD XL$$
$$2440 = MMCDXL$$
Question 2
1 / -0

Roman numeral for the greatest single digit number is

A
XI

B
IC

C
IX

D
ID

Solution

$$IX=9$$
Question 3
1 / -0

Difference of $$1000$$ and $$400$$(in roman number) is

A
D

B
L

C
C

D
DC

Solution

$$1000-400=DC$$
Question 4
1 / -0

Roman numeral for the smallest four digit number is

A
$$X$$

B
$$M$$

C
$$C$$

D
$$D$$

Solution

The smallest four digit number is $$ 1000 $$ and the Roman numeral for $$1000$$ is $$ M $$.
Question 5
1 / -0

Ankita's age is $$48$$ years. Express it in Roman system.

A
XXXVIIII

B
XLVII

C
XLVIII

D
XLV

Solution

$$48 =40 + 8 $$
$$=XL + VIII $$
$$=XLVIII;$$

$$48=XLVIII$$
Question 6
1 / -0

The first basic Roman numeral is

A
0

B
I

C
V

D
X

Solution

(B) 1
Question 7
1 / -0

Numerals that can be repeated in Roman system are

A
$$I, X \ and\ C$$

B
$$I, V \ and\ X$$

C
$$V, L\ and\ D$$

D
$$D$$

Solution

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 $$I, X \ and \ C $$
Question 8
1 / -0

Roman numerals for $$498$$

A
CDCXVIII

B
CDCXIV

C
CDXCVIII

D
CDXCVII

Solution

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
$$CDXCVIII=498$$
Question 9
1 / -0

Write $$39$$ in roman numbers

A
XXXIX

B
XXXXI

C
XXXX

D
None of these

Solution

To convert $$39$$ to Roman Numerals we need to split it up into place values (ones, tens, hundreds, etc.):

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

$$\Rightarrow$$ Please note that we skipped place values that equal $$0$$.

$$39$$ can be represented in roman numbers as $$XXXIX.$$
So option $$A$$ is the correct answer.
Question 10
1 / -0

Greatest five digit number that can be formed using $$7, 9, 0, 5, 2$$ is ________.

A
$$79052$$

B
$$90752$$

C
$$97520$$

D
$$97052$$

Solution

To form the greatest $$5$$ digit number we write the given numbers in descending order.

The number we form is $$97520.$$

So option C is the correct answer.

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Re-Attempt Weekly Quiz Competition

Knowing our Numbers Test - 12

Result

Knowing our Numbers Test - 12

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SHARING IS CARING

Question 1

$$MMCDXL$$

$$MCDXL$$

$$MMMDXL$$

$$MMDLX$$

Solution

Question 2

XI

IC

IX

ID

Solution

Question 3

D

L

C

DC

Solution

Question 4

$$X$$

$$M$$

$$C$$

$$D$$

Solution

Question 5

XXXVIIII

XLVII

XLVIII

XLV

Solution

Question 6

0

I

V

X

Solution

Question 7

$$I, X \ and\ C$$

$$I, V \ and\ X$$

$$V, L\ and\ D$$

$$D$$

Solution

Question 8

CDCXVIII

CDCXIV

CDXCVIII

CDXCVII

Solution

Question 9

XXXIX

XXXXI

XXXX

None of these

Solution

Question 10

$$79052$$

$$90752$$

$$97520$$

$$97052$$

Solution

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