40 out of 60 people like A. The maximum number of people who don't like A is 20, and the maximum number of people who like B is 45. The maximum number of people who don't like B is 15, and the maximum number of people who like C is 48. The maximum number of people who don't like C is 12, and 22 people like A, B and C less than 45, so this 22. Conclusion: The maximum number of people who don't like B is only 65,438.