Question

В классе 30 человек из них 20 человек посещает кружок по истории а 16 человек кружок по математике вибирите утверждения которые следуют из приведенных данны 1.хотя бы 2 человека ходят и туда и туда 2.если 1 ученик не ходит на историю то ходит на математику 3.точно есть ученик который не посещает оба кружка 4.найдется ученик ходит на кружок истории.но не ходитт на коужок математики

Answer 1

 ........  следует утверждение 1-е и 4-е

Answer 2

Может быть правельны 1 и 4 и 2

Answer 3

Given Information:

- Total number of students in the class: 30 - Number of students attending the history club: 20 - Number of students attending the math club: 16

Analysis:

1. At least 2 students attend both the history and math clubs. - This statement cannot be determined based on the given information. We know the number of students attending each club, but we don't have any information about the overlap between the two clubs. Therefore, we cannot conclude that at least 2 students attend both clubs.

2. If a student does not attend the history club, they attend the math club. - This statement can be inferred from the given information. If there are 30 students in total and 20 students attend the history club, then the remaining 10 students must attend the math club. Therefore, if a student does not attend the history club, they must attend the math club.

3. There is definitely a student who does not attend either club. - This statement cannot be determined based on the given information. We know the number of students attending each club, but we don't have any information about students who do not attend either club. Therefore, we cannot conclude that there is definitely a student who does not attend either club.

4. There is a student who attends the history club but not the math club. - This statement can be inferred from the given information. If there are 20 students attending the history club and only 16 students attending the math club, then there must be at least 4 students who attend the history club but not the math club. Therefore, there is a student who attends the history club but not the math club.

Based on the analysis, we can conclude that statement 2 and statement 4 are true based on the given information.

Please let me know if you need any further clarification.