Question

If we follows today's calendar, then the day on which first Republic day was celebrated, is

• A. Monday
• B. Tuesday
• C. Thursday
• D. Friday

Answer 1

Answer: (C)

Thursday

1600 years have $0$ odd days and $300$ years have 1 odd day.
$49$ years contain $12$ leap year and $37$ ordinary years
$\therefore (24+37)$ odd days.
5 odd days thus 1949 years contain $(0+1+5)=6$ odd days
26 days of January contain 5 odd days.
$\therefore$ Total odd days $=(6+5)=11$ or 4 odd days.
So, the day was $Thursday$