Question

Which of the following correctly shows $24358999$ according to Indian place value chart?
A) $24,35,899,9$
B) $24,35,89,99$
C) $2,43,58,999$
D) $243,589,99$

Answer 1

Hint: We have two systems: Indian and International systems for expressing a number. Both differ with the position of comma in between the digits. Certain digits of the numbers are grouped using the commas.

Complete step-by-step answer:
Given the number $24358999$.
We have to find the correct representation of the number according to Indian place value chart.
In the Indian system of Numeration, starting from the right, the first period is ones, consisting of three place values (ones, tens and hundreds). The next period is thousands consisting of two place values (thousands and ten thousands). The third period is lakhs consisting of two places (lakhs and ten lakhs) and then crores and so on.
So $2,43,58,999$ is the correct representation.
Here we have four periods: Ones, thousands, lakhs and crores.

$\therefore $ The answer is option C.

Note: In the International system of numeration, all the periods have three place values each. Since each period has three place values, so to write a number with the help of comma(s), we have to put a comma after every three digits from the right.
Indian system is also known as Hind-Arabic System.
Since Indian system and International system have differences in periods and place values, we must carefully check what is asked. International system has every period identically three digits as the same time Indian system has first three and two for all others.