Question

Express in Indian number system: 35,987,123
A. 35,987,123
B. 3,59,87,123
C. 3,987,123
D. 3,59,8,71,23

Answer 1

Hint: In this question, we have been given a number written in the international number system and we have to convert it into an Indian number system. To solve this question first we will discuss the difference between the international number system and the Indian number system.

Complete step by step answer:
We have been given the number 35,987,123
We have to convert it into an Indian number system.
As we know that in the Indian number system the place values of the digits go in the sequence of ones, tens, hundreds, thousands, ten-thousand, lakhs, ten-lakh, crores, and so on.
In the International number system, the place value of the digits goes in the sequence of ones, tens, hundreds, thousands, ten-thousand, hundred-thousand, millions, ten-millions, and so on.
The difference between the two systems is the placement of a comma. A comma between numbers helps us to read and write numbers easily. In the Indian number, the system comma is placed after the hundreds place and after that comma is placed after every two digits.
Whereas in the international number system the first comma is placed after hundreds of places and then placed after every three digits.
We have a number of 35,987,123 in the international number system the number is written as:
Thirty-five million nine hundred eighty-seven thousand one-hundred and twenty three.
Now, in the Indian number system the number will be written as:
Three crores fifty-nine lakh eighty-seven thousand one hundred twenty three.
Now, in numerals, the number is written as 3,59,87,123
Option B is the correct answer.

Note:
 The relationship between the Indian number system and international number system is as follows:
100 thousand = 1 lakh
1 million = 10 lakhs
10 millions = 1 crore
100 millions = 10 crores
To solve this type of question students must have a clear idea about the Indian number system and international number system.