Nisha’s birthday falls on 11th January. In 1996 she celebrated it on a Thursday. On which day of the week will she celebrate her birthday in 2010?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Monday
A date moves 1 day forward after each ordinary year and 2 days forward after a year that contains a 29th February.
From 11 January 1996 to 11 January 2010 there are 14 years
29th February comes in between in 1996, 2000, 2004 and 2008 (29 February 1996 is after 11 January 1996; 2000 is a leap year because it is divisible by 400), so 4 extra days
Odd days \(=14+4=18=2\times7+4\), that is 4 odd days
Thursday + 4 days = Monday