Question

Сколько в ХХІ столетии лет, в которых 1 января будет тем же днём недели, что и 31 декабря, если известно, что 2100 год не считается високосным, а 2000 год отно- сится к ХХ столетию? А. 74 раза. Б. 75 раз. В. 76 раз. Г. 80 раз

Answer 1

Б)75 раз вот мой ответ

Answer 2

Calculation of the Number of Years

To determine the number of years in the 21st century where January 1st falls on the same day of the week as December 31st, we need to consider the non-leap year pattern and the fact that the year 2100 is not a leap year.

The 21st century spans from the year 2001 to the year 2100. We know that the year 2000 is part of the 20th century, so we need to exclude it from our calculations.

To find the number of years, we can start by examining the pattern of non-leap years. In a non-leap year, there are 365 days, which is equivalent to 52 weeks and 1 day. This means that the days of the week will shift by one day each