umbers are there in all in the number system?bal – InterviewSolution

1.

umbers are there in all in the number system?bal

Answer»

Last four digit number is 9999

So there are 9999 numbers till last 4 digit number.

Now we want just four digit numbers so we can get them by subtracting numbers other than 4 digit number from 9999

i.e. from 1 to 999

So, 9999–999= 9000 numbers

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