Correct Answer - Option 4 : Saturday
Odd days:
A leap year has 366 days and a non-leap year has 365 days.
Leap year = 366 days or 52 weeks and 2 days. So, here the number of odd days are 2.
Non - Leap year = 365 days or 52 weeks and 1 day. So, here the number of odd days is 1.
The odd days between 2015 to 2016 is 2 odd days (as, 2016 is a leap year).
Code of the day
|
Day
|
0
|
Sunday
|
1
|
Monday
|
2
|
Tuesday
|
3
|
Wednesday
|
4
|
Thursday
|
5
|
Friday
|
6
|
Saturday
|
Given, 21 November 2016 was Monday.
So, 21 November 2015 = Monday - 2 = Saturday.
Hence, "Saturday" is the correct answer.