If 2 January 2400 will be Thursday, then what will be the day on 18 May 2403?
Show answer & explanation
Correct answer: C
Explanation
Odd days from 2400 to 2403:
Years: 2400, 2401, 2402
2400 = Leap year ⇒ 2 odd days
2401 = Ordinary year ⇒ 1 odd day
2402 = Ordinary year ⇒ 1 odd day
Total = 2 + 1 + 1 = 4 odd days
From January 2 to May 18, 2403:
Days in the months:
January (Remaining) = 29 days (from the 3rd to the 31st)
February = 28
March = 31
April = 30
May = 18
Total = 29 + 28 + 31 + 30 + 18 = 136 days
136 / 7 = 3 odd days
Total odd days:
4 + 3 = 7 ⇒ 0 odd days
The day remains the same.
Thursday + 0 = Thursday
Final Answer: Thursday