15
set of odd numbers divisible by 2 between 10 and 20
There are 10 3-digit odd palindromes that are divisible by five.
15 and any odd multiple of 15.
Since 1845 is an odd number, it can't be divisible by 2, 6 or 10. It is divisible by 3, 5 and 9.
15
15
set of odd numbers divisible by 2 between 10 and 20
There are 10 3-digit odd palindromes that are divisible by five.
you can say that 2/10 of every 10 integers is divisible by 5, so multiplying 2/10 by 100, giving you 200/1000 total integers are divisible by 5. half of all integers are odd, so divide 200/1000 by 2 is 100/1000, so you can correctly state that 100 odd integers under 1000 are divisible by 5.
15 and any odd multiple of 15.
225 is odd, so neither 2 or 10 fit into it. All numbers that end in 5 are divisible by 5, so that's your answer.
There are 89,999 numbers between 100,000 and 999,999 that are divisible by 10.
There are no numbers between 900 and 1,100 that are divisible by 10 but not by two.
10
Since 1845 is an odd number, it can't be divisible by 2, 6 or 10. It is divisible by 3, 5 and 9.
There are nine numbers between 10 and 100 that are evenly divisible by 11.