Question

Незнайка решает задачу: «Какой сегодня день недели, если известно, что когда послезавтра станет вчера, то сегодня будет так же далеко от воскресенья, как тот день, который был сегодня, когда вчера было завтра». Помогите Незнайке определить, какой сегодня день недели.

Answer 1

(Пн)(Вт)(Ср)(Чт)(Пт)(Сб)(Вс)(Пн)(Вт)(Ср)(Чт)(Пт)(Сб)(Вс)
Послезавтра станет вчера это +4 дня,
позавчера завтра это -4 дня
числа равны, просто идут в разные стороны, а раз удалённость от воскресенья, то это по идее и есть воскресенье

Answer 2

Solution:

To determine the current day of the week, we need to analyze the given statement:

"Какой сегодня день недели, если известно, что когда послезавтра станет вчера, то сегодня будет так же далеко от воскресенья, как тот день, который был сегодня, когда вчера было завтра."

Let's break down the statement and analyze it step by step:

1. "Когда послезавтра станет вчера" - This means that the day after tomorrow will become yesterday. 2. "То сегодня будет так же далеко от воскресенья, как тот день, который был сегодня, когда вчера было завтра" - This means that today will be as far from Sunday as the day that was today when yesterday was tomorrow.

To solve this problem, we need to determine the relationship between the current day and Sunday based on the given information.

Let's assume that today is Monday. According to the given statement, when the day after tomorrow becomes yesterday, it means that today is Sunday. However, the statement also says that today will be as far from Sunday as the day that was today when yesterday was tomorrow.

If today is Monday and yesterday is Sunday, then the day that was today when yesterday was tomorrow would be Saturday. But the statement says that today will be as far from Sunday as that day, which means that today cannot be Monday.

Let's try another day. If today is Tuesday and yesterday is Monday, then the day that was today when yesterday was tomorrow would be Sunday. According to the statement, today will be as far from Sunday as that day. Since today is Tuesday and Sunday is two days away, this statement holds true.

Therefore, based on the given information, today is Tuesday.

Answer:

The current day of the week is Tuesday.