Question

3)Prove that equation of circle not function.
(2)
4) 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 ?
(4)​

Answer 1

Answer:

answer is zero

because there is only 100 students and when you say it becomes 120