If 11 August 1918 is Sunday, then what will be the day of the week on 4 December 1925?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Friday.
11 August 1918 is Sunday
Years from 11 August 1918 to 11 August 1925 = 7 years (2 leap years and 5 ordinary years)
Odd days in 7 years = (2 × 2) + (5 × 1) = 9 ÷ 7 = 2 odd days
Days from 11 August 1925 to 4 December 1925 = 20 + 30 + 31 + 30 + 4 = 115 days
Odd days in 115 days = 115 ÷ 7 = 3 odd days
Total odd days = 2 + 3 = 5 odd days
Thus, the day of the week on 4 December 1925 = Sunday + 5 = Friday.