Question

two numbers which - divisible by 5 but not by 10 . 2.divisible by both 4 and 8. 3.divisible by 3 but not by 9. 4.divisible by 2 4 and 8

Answer 1

15 25
16 24
21 33
16 24

Answer 2

1-ans =15,25
2-ans=16,24
3-ans=6
4=?