# The last day of a century cannot be

- Monday
- Wednesday
- Friday
- Saturday

**Answer: (4) Saturday **

**Solution:-****
**100 years contain 5 odd days.

Therefore, Last day of 1

^{st}century is Friday.

200 years contain (5 x 2) = 3 odd days.

Therefore, Last day of 2

^{nd}century is Wednesday.

300 years contain (5 x 3) = 15 = 1 odd day.

Therefore, Last day of 3

^{rd}century is Monday.

400 years contain 0 odd day.

Therefore, Last day of 4

^{th}century is Sunday.

This cycle is repeated.

Therefore, Last day of a century cannot be Tuesday or Thursday or Saturday.

Hence, the correct answer is option (4) Saturday.