Answer with Explanation:
100 years contain 5 odd days.
Therefore,Last day of 1st century is Friday.
200 years contain (5 x 2) 3 odd days.
Therefore,Last day of 2nd century is Wednesday.
300 years contain (5 x 3) = 15 1 odd day.
Therefore,Last day of 3rd century is Monday.
400 years contain 0 odd day.
Therefore,Last day of 4th century is Sunday.
This cycle is repeated.
Therefore,Last day of a century cannot be Tuesday or Thursday or Saturday.