Question

65% of students in a class like cartoon movies, 70% like horror movies and 75% like war movies.What is the smallest percent of student liking all three type of movies ?

Answer 1

Q: 65% of students in a class like cartoon movies, 70% like horror movies and 75% like war movies.What is the smallest percent of student liking all three type of movies ?

Suppose the percentage of students who like all kinds of movies is X. Now,

1. if X is less than or equal to 30, the answer is 5 because 5 < 30 <= X

2. if 25 <= X < 30, the answer is 5 because 5 < 25 <= X

3. if 10 <= X < 25, the answer is 5 because 5 < 10 <= X

4. if 5 <= X < 10, the answer is 5 because 5 <= X

5. if X < 5, the answer can't be any of these because none of the values mentioned are smaller than X.

So the smallest percentage liking all films is 5%.