Question

How many 4 digit octal numbers can be formed.....?

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Answer 1

Answer: The greatest 4 digit octal number is 7777

and smallest 4 digit octal numbers is 1000

There are 6778 four digit octal number . As when we count anything from 1 number to another we first subtract them and it to number 1.

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Answer 2

Answer:

6778

Step-by-step explanation:

To Find:- Total number of 4-digit octal numbers that can be formed.

Solution:-

The highest 4-digit octal number that exists is 7777, whereas the smallest four digit octal number is 1000.

Therefore, (7777 - 1000) = 6777

So, the total number of four digit octal number that exists is (6777 + 1)

= 6778. The extra +1 is for the initial number i.e. 1000.

Therefore, Total 6778 four digit octal numbers can be formed.

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