If 2 October 2012 was Tuesday, then what was the day of the week on 1 October 2016?

​​Number of years = 4 (2012 to 2016)

Leap years = 1 (2016) → odd days = 2

Ordinary years = 3 → odd days = 3 × 1 = 3

Total odd days = 2 + 3 = 5

Day on 2 Oct 2012 = Tuesday
Day on 2 Oct 2016 = Tuesday + 5 days = Sunday

Since 1 Oct 2016 is 1 day before 2 Oct 2016:
Day on 1 Oct 2016 = Sunday - 1 day = Saturday

Thus, correct option is (c).