If 7th April 2009 is Wednesday, then 7th April 2609
will be a
Answers
Tuesday
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Answer:
7th April 2609 is Wednesday.
Step-by-step explanation:
Informations to be remembered.
Magic Number Month array.
For Year: {0,3,3,6,1,4,6,2,5,0,3,5}
DAY array starting from 0-6: {Sunday, Monday, Tuesday, Wednesday,
Thursday, Friday, Saturday} where 0 represents Sunday, 1 represents Monday and so on.
Century Year Value: 1600-1699 = 6
1700-1799 = 4
1800-1899 = 2
1900-1999 = 0
2000-2099 = 6
Concept used :
Now, Consider the last 2 digits of the number: 09
Divide the above value by 4: 2
The remainder is 1.
Take the date: 7
Take month value from the array : 6
Take century year value: 6
Take the sum of all the numbers, we get : 31
Divide the sum by 7 and get the remainder: 3
From the array 3 represents Wednesday, Thus the 7th April 2609 is Wednesday.
To know more about the concept, refer:
https://www.geeksforgeeks.org/find-day-of-the-week-for-a-given-date/
https://www.wikihow.com/Calculate-the-Day-of-the-Week
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