If today is Friday, what's the day of the ninth power after the ninth power from today?
The 9th power of 9
The ninth power of 9 is 387420489
What is the ninth power of 387420489
Then subtract 2 (Saturday, Sunday)
Except on 7 (1 week, 7 days)
If not, it's Sunday
If there is a remainder, the remainder is the day of the week
(for example, the remainder is 3, Wednesday)
Because a set of rules is Monday to 7, minus Saturday and Sunday
After that, a new set of rules will be opened, and the quotient removed is the number of rules experienced
The remainder is the number that is not enough to form a new set of laws after so many sets of laws,
So the rest is the day of the week
For example, the remaining 3
One set of rules is 7
Only three
Monday, Tuesday and Wednesday (3)
The last one is the day of the week
What grade is this?