Question
The last day of a century cannot be
Answer: Option C
Was this answer helpful ?
100 years contain 5 odd days.
So, Last day of 1st century is Friday.
200 years contain (5 x 2) \(\equiv\) 3 odd days.
So, Last day of 2nd century is Wednesday.
300 years contain (5 x 3) = 15 \(\equiv\) 1 odd day.
So, 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.
So, Last day of a century cannot be Tuesday or Thursday or Saturday.
Was this answer helpful ?
More Questions on This Topic :
Latest Videos
Latest Test Papers
Submit Solution