Question

On 8^th February, 2020 it was Saturday. What was the day of the week on 1^st February, 2016 ?
1. Sunday 
2. Monday
3. Tuesday
4. Wednesday

Answer 1

Correct Answer - Option 2 : Monday

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.

Number of odd days in the following years

2017	2018	2019	2016
1	1	1	2

Total number of odd days in all the years combined = 1+1+1+2 = 5

Code of the day	Day
0	Sunday
1	Monday
2	Tuesday
3	Wednesday
4	Thursday
5	Friday
6	Saturday

 8th February 2020  was Saturday

Code for Saturday is 6 and the number of odd days in all the years combined is 5. So, 6 - 5 = 1

1 is the code for Monday.

Hence, 1^st February 2016 was Monday.