Question

How many positive integers between 1000 and 9999 inclusive a) are divisible by 9? b) are even? c) have distinct digits? d) are not divisible by 3? e) are divisible by 5 or 7? f ) are not divisible by either 5 or 7? g) are divisible by 5 but not by

Answer 1

I'm not sure about this question. There is so many positive integers and try to search it on Google. That might be a lot of integers to count.