Question

If the number reads “Eleven lakh seventy thousand six hundred seven”. Find the missing digits: 11,70,_07

Answer 1

Hint: Recall the Indian number system and express the number given in words as an actual number and then find the missing digit.

Complete step-by-step solution -
In Indian numbering system, different periods like ones, thousands, lakhs, crores, etc. are used. It includes ones (1), tens (10), hundred (100), thousands (1,000), ten thousands (10,000), lakhs (1,00,000), ten lakhs (10,00,000), crores (1,00,00,000), ten crores (10,00,00,000) and so on.
The first period is called the ones period and is formed by the first three digits of the number from the right.
The second period is called the thousands period and is formed by the next two digits of the number.
The third period is called the lakhs period and is formed by the next two digits of the number.
The fourth period is called the crores period and is formed by the next two digits of the number.
Also, we have to use commas after every period to differentiate the periods.
The number is given in words as “Eleven lakh seventy thousand six hundred seven”.
The lakhs period includes “Eleven lakh” which forms the 6th and 7th digit from the right, that is, 11,xx,xxx.
The thousands period includes “seventy thousand” which forms the 5th and 4th digit from the right, that is 11,70,xxx.
The ones period includes “six hundred seven” which forms the first three digit of the number.
Hence, we have the number as 11,70,607.
Compared with the given number, the missing number is 6.

Note: The given number is in Indian number system since lakh is used and the commas are used to differentiate each period from others.