1. The contents of the questions are different: the descriptions of the questions in questions 23 and 24 are different, but a slight change will also lead to different methods and answers.
2. The difficulty of the questions is different: Questions 23 and 24 belong to different difficulty levels. Zhang Yu 1000 is a set of questions in the college entrance examination mathematics and other mathematics competitions, and the difficulty of the questions ranges from simple to difficult.
3. Different solutions: Questions 23 and 24 involve different mathematical concepts and need different solutions.