Math, asked by Slipknot924, 1 year ago

How many seven digits numbers are there whose sum of digits is odd?

Answers

Answered by nirbhaya2020

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.

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