Calenders Q8

8.  The last day of a century cannot be

A.)     Monday

B.)     Wednesday

C.)      Friday

D.)     Tuesday

Answer: Option D

Explanation:

100 years contain 5 odd days.

  Last day of 1st century is Friday.

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

  Last day of 2nd century is Wednesday.

300 years contain (5 x 3) = 15 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.