Calendar Questions Q.17
0. The last day of a century cannot be
- Option : C
- Explanation : 100 years contain 5 odd days.
Last day of 1st century is Friday.
200 years contain (5 × 2) = 3 odd days
Last day of 2nd century is Wednesday.
300 years contain (5 × 3) = 15 odd days that is, equal to 1 odd day.
Last day of 3rd century is Monday.
400 years contain 0 odd days.
Last day of 4th century is Sunday.
This cycle is repeated.
Last day of a century cannot be Tuesday or Thursday or Saturday.
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