Knowing our Numbers Test

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Knowing our Numbers Test - 14

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Weekly Quiz Competition

Question 1
1 / -0

The smallest three digit number formed by the digits $$2, 0$$ and $$3$$.

A
$$203$$

B
$$032$$

C
$$302$$

D
None of the above

Solution

The numbers formed by $$2, 0$$ and $$3$$ are $$203, 302, 023, 320, 230$$ and $$032$$.
The smallest 3 digit number formed is $$203$$.
So, option A is correct.
Question 2
1 / -0

Numeral for $$CCCXLVII$$

A
$$357$$

B
$$347$$

C
$$367$$

D
$$387$$

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.
CCCXLVII
$$100 + 100 + 100 + 40 + 7 = 347$$
Question 3
1 / -0

Compare $$9848022335$$ and $$9848023435$$
using (>. <. =)

A
<

B
>

C
=

D
none

Solution

9848023435 is greater than 9848022335
hence correct option is A
Question 4
1 / -0

Numeral for ninety million ninety thousand ninety is

A
9090090

B
90090090

C
909090

D
none

Solution

$$1$$ Million $$=1,000,000$$
$$\Rightarrow$$ $$90$$ Million $$=90\times 1,000,000=90,000,000$$ ---- ( 1 )

$$1$$ thousand $$=1,000$$
$$\Rightarrow$$ $$90$$ thousand $$=90\times 1000=90,000$$ ---- ( 2 )
$$\Rightarrow$$ Ninety can be written as $$=90$$ ---- ( 3 )

Adding ( 1 ), ( 2 ) and ( 3 ) we get,
$$\Rightarrow$$ $$9,00,00,000+90,000+90=9,00,90,090$$

$$\therefore$$ Numeral for ninety million ninety thousand ninety is $$90,090,090$$
Question 5
1 / -0

Find the correct option such that the formation of $$3$$ numbers, using three digit number $$128$$? (Without repeating the numbers)

A
$$281, 221$$ and $$182$$

B
$$281, 851$$ and $$182$$

C
$$681, 821$$ and $$182$$

D
$$281, 821$$ and $$182$$

Solution

$$128$$ can be written using the general form $$abc = 100 \times a + 10 \times b + c$$
By changing the alphabetic orders of $$a, b, c$$, we get $$3$$ more numbers from $$3$$ digit number.
Here, $$281, 821$$ and $$182$$ are formed from the $$3$$ digit number $$128$$.
Question 6
1 / -0

Compare 67389145 _ 673891450 using (>, <, = )

A
<

B
>

C
=

D
None

Solution

67389145 < 673891450
(Comparing the number of places)
Question 7
1 / -0

Round off $$829$$ to nearest $$100$$.

A
$$800$$

B
$$700$$

C
$$900$$

D
$$850$$

Solution

The given number is $$829$$
Its tens digit is $$2$$, which is less than $$5$$. So, we replace each of the tens and ones digits by $$0$$ and keep the other digits as they are to round off the given number to nearest $$100.$$
$$\therefore$$ Round off $$829$$ to nearest $$100$$ is $$800$$.
Question 8
1 / -0

Sum of $$10$$ and $$40$$ in roman number is

A
C

B
V

C
L

D
D

Solution

The sum of $$10$$ and $$40$$ is,
$$10+40=50$$
$$50$$ is written as the symbol L in Roman numerals.

Option C is the correct answer.
Question 9
1 / -0

Read the number:
$$88,789$$

A
Eight thousand eight hundred seven eighty nine.

B
Eighty eight thousand seven hundred eighty nine.

C
Eighty eight thousand eight hundred eighty nine.

D
Eighty eight thousand seven hundred ninety eight.

Solution

$$88,789$$ reads as Eighty eight thousand seven hundred eighty nine

$$8$$ is at ten thousand's place, $$8$$ at thousand's place, $$7$$ at hundred's place and so on.
Question 10
1 / -0

Form the highest 4-digit number using the given digits: 4, 7, 2, 9.

A
$$9742$$

B
$$9724$$

C
$$9472$$

D
$$9274$$

Solution

The given digits are $$4,\ 7,\ 2,\ 9$$.
The largest $$4-$$ digit number that can be formed using the digits $$4,7,2,9$$ will have the digits in descending order, i.e. $$9,7,4,2.$$

$$\therefore\ $$ Highest number formed is $$9742$$.

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Re-Attempt Weekly Quiz Competition

Knowing our Numbers Test - 14

Result

Knowing our Numbers Test - 14

Score

-

Rank

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SHARING IS CARING

Question 1

$$203$$

$$032$$

$$302$$

None of the above

Solution

Question 2

$$357$$

$$347$$

$$367$$

$$387$$

Solution

Question 3

<

>

=

none

Solution

Question 4

9090090

90090090

909090

none

Solution

Question 5

$$281, 221$$ and $$182$$

$$281, 851$$ and $$182$$

$$681, 821$$ and $$182$$

$$281, 821$$ and $$182$$

Solution

Question 6

<

>

=

None

Solution

Question 7

$$800$$

$$700$$

$$900$$

$$850$$

Solution

Question 8

C

V

L

D

Solution

Question 9

Eight thousand eight hundred seven eighty nine.

Eighty eight thousand seven hundred eighty nine.

Eighty eight thousand eight hundred eighty nine.

Eighty eight thousand seven hundred ninety eight.

Solution

Question 10

$$9742$$

$$9724$$

$$9472$$

$$9274$$

Solution

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