Tag: numbers in indian and international systems

Questions Related to numbers in indian and international systems

If the digit $1$ is placed after a two digit number whose ten's digit is $t$ and unit's digit is $u$, then the new number is: 

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. $\displaystyle 10t+u+1$

  2. $\displaystyle 100t+10u+1$

  3. $\displaystyle 1000t+10u+1$

  4. $\displaystyle t+u+1$

Show answer
Correct Option: B
Explanation:

Given, ten's place digit $= t$ and one's place digit $= u$
Two digit number $= 10\times$ten's place digit+one's place digit
                             $= 10t+u = tu$

If the digit 1 is placed after a two digit number, the new number is $tu1$, 
which now becomes a three digit number. 

The hundreds place digit $= t$, ten's place digit $= u$ and one's place digit $= 1$

$\therefore$ Number $=100\times$hundred's place digit + $10\times$ten's place digit + one's place digit
                   $=100t+10u+1$

So, Option B is correct.

Place value and face value are always equal for

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. $0$

  2. $1$

  3. any digit

  4. $10$

Show answer
Correct Option: A
Explanation:

Place value of a digit depends on the place of the digit in the number, while the face value is same as the digit itself. 

Hence, place value and face value are always equal for the digit $0$,
as place value of $0$ is always $0$, irrespective of its position in the number.
So, option A is correct. 

Face value of $4$ in $408,356,112$ is

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. $400$ million

  2. $4$

  3. hundred million

  4. $0$

Show answer
Correct Option: B
Explanation:

Face value of a digit is the digit itself.
So, Face value of $ 4 $ in $ 408, 356, 112 $ is $ 4 $.

If the digit $1$ is placed after a two digit number whose tens digit is $'t' $and units digit is $'u',$  the new number is:

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. $l0t + u + 1$

  2. $100t + 10u + 1$

  3. $t + u + 1$

  4. None of these

Show answer
Correct Option: B
Explanation:

Placing 1 after two digit number is the indication that,

shift the given digit towards left, so that $t$ is now hundred's digit and $u$ is now tens digit so the value becomes $100t+10u+1$
So $100t+10u+1$ is correct answer

Ten lakhs comes under ______ period

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. crores

  2. lakhs

  3. thousands

  4. millions

Show answer
Correct Option: B
Explanation:

Ten lakhs & lakhs places are in
the lakhs period

$10$ million $=$ _______ crore

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. $10$

  2. $1$

  3. $5$

  4. $100$

Show answer
Correct Option: B
Explanation:

As we know that $10$ lakh $= 1$ million.

So, $10$ million $= 10 \times 10 $ lakh which is equal to $1$ crore.
Hence, the answer is $1$.

Places according to Indian number system are:

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. ones and tens

  2. ones, tens and hundreds

  3. ones, tens and thousands

  4. ones, thousands, hundreads and thousands

Show answer
Correct Option: B
Explanation:

According to the indian number system the places of the number is 

ones,tens and hundereds.
so option A is the correct answer.

$1$ lakh $=$ __________ thousand

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. $1000$

  2. $100$

  3. $10$

  4. $10000$

Show answer
Correct Option: B
Explanation:

$1$ lakh $1,00,000= 100$ thousand. 

Hence, the answer is $100$.

Place value of $8$ in $86,93,04,600$ is:

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. eight crores

  2. eighty crores

  3. crores

  4. eighty six crores

Show answer
Correct Option: B
Explanation:
The given number is $86,93,04,600$
By using Indian number system, the value of $8$ is $80$ crores.
Hence, the answer is eighty crores.

Place value of $3$ in $712,364,962$ is:

maths numbers in indian and international systems indian system of numeration numbers to 1 million formation of large numbers

  1. hundred thousand

  2. $300$ thousand

  3. $3$ million

  4. $3$

Show answer
Correct Option: B
Explanation:

By using Indian number system, the value of $3$ is $3$ lakhs which can be also written as $300$ thousand. 

Hence, the answer is $300$ thousand.