Question

Люди срочно нужна помощь!!! Дам 60 балов!!! Тут задача противоречит самой себе кто знает как решить помогите. Мальчики заговорили о серёжиных марках. У него их не меньше 1000, сказал ПетяТы не прав у него их меньше возразил андрейНо одна-то у него наверняка есть добавил антон. Известно что из этих трёх утверждений только одно верное. Сколько марок у Сергея?

Answer 1

Антон и Сергей неверно
1 марка меньше 1000

Answer 2

Но одна то марканаверняка у него есть добавил антон. верное утверждение

Answer 3

The Problem and Solution

The problem states that three boys, Petya, Andrey, and Anton, are discussing the number of stamps that Sergey has. Petya claims that Sergey has more than 1000 stamps, while Andrey disagrees and says that Sergey has fewer stamps. Anton adds that Sergey definitely has at least one stamp. The problem also states that only one of these three statements is true. We need to determine how many stamps Sergey actually has.

To solve this problem, we can analyze each statement and its implications. Let's consider each statement one by one:

1. Petya claims that Sergey has more than 1000 stamps. 2. Andrey disagrees and says that Sergey has fewer stamps. 3. Anton adds that Sergey definitely has at least one stamp.

Since only one of these statements is true, we can conclude that Sergey does not have more than 1000 stamps, as stated by Petya. If Petya's statement were true, then both Andrey and Anton's statements would also be true, which contradicts the problem's condition.

Now, let's consider the remaining two statements:

1. Andrey says that Sergey has fewer stamps. 2. Anton adds that Sergey definitely has at least one stamp.

Since only one of these statements is true, we can conclude that Sergey does have at least one stamp, as stated by Anton. If Anton's statement were false, then both Petya and Andrey's statements would also be false, which again contradicts the problem's condition.

Therefore, we can conclude that Sergey has at least one stamp, but not more than 1000 stamps. The exact number of stamps cannot be determined based on the given information.

In conclusion, the number of stamps Sergey has cannot be determined based on the given information.