if Friday falls on 15th of September 2000, what will be the day of 15th of September 2001
Answers
15th September 2001 will be a Saturday.
For any given day of the year and any other day of the year, if their difference is a multiple of 7, they have the same day otherwise it is shifted.
Example: for 1st January of a normal year, the last day is 31st december which is the 365th day.
365-1 = 364 which is 7 x 52.
Hence the last day of a normal year has the same day as the first day.
Hence the first day of the next year has its day shifted by 1.
However as a leap year has 366 days it is shifted by 2 in that case.
2000 is a leap year however the extra day was Feb 29 which i already counted.
Hence as 15th Sep 2000 and 2001 have 364 days in between them, the day in 2001 will be shifted by 1 hence it will be a saturday.
Answer:
sep 15 2000... mark as brilliant