Why many JEE Students don’t feel confidence ? #shorts

What do these statements tell you about Anne Frank as a person? We don’t seem to be able to get any closer, and that’s the problem. Maybe it’s my fault that we don’t confide in each other.

In a school there are 100 students 60 of them don't like Chocolate and 50 don’t like Biscuit and 10 of them like none then how many of them like both?