Republic Day of India in 1980 fell on a Saturday. Mohan was born on 3rd March 1980 and Sohan is 4 days older than Mohan. On which day of the week was Sohan born?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → Thursday
The weekday moves on by one for every odd day, the days left over after whole weeks are removed. So the days from Republic Day (a Saturday) to Mohan’s birthday are counted month by month; 1980 is a leap year, so February has 29 days.
January, after the 26th: 5 days (27th to 31st)
February: 29 days
March, up to the 3rd: 3 days
Total \(=5+29+3=37\) days \(=5\) weeks and 2 odd days
3 March 1980 is 2 days after Saturday: Monday
Sohan’s birthday:
4 days before 3 March 1980 is 28 February 1980 (counting back through 2 March, 1 March, 29 February)
4 days before Monday is Thursday