Math, asked by naveenarya983, 1 month ago

(b) How many 7 digits number are there in
All.

Answers

Answered by meenumaurya29011986

Answer:

So total number of 7 digit numbers=9999999 – 1000000+1). Out of 9000000 numbers, 4500000 are having the sum of digits as even and the remaining 4500000 are having the sum of digits as odd. Every alternate number has its sum of digits even and odd. There are 9000000 seven digit numbers.

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