Permutations and Combinations Part 2

Number of 3 digit number = 900
Number of 3 digit number divisible by 2 and 3
=‌

900

6

=150
Number of 3 digit number divisible by 4 and 9
=‌

900

36

=25
Number of 3 digit number divisible by 2 and 3 but not divisible by 4 and 9
=150−25=125