Aptitute

Question

If a Kavita is born on 26 January 2005 then What is day of the week in which she born ?

Answer 1

Considering that you know the concept of odd days in calendar

Every 100 years have 5 odd days.

Every 400 years has->((4*5)+(1))%7=0 odd days because 400th year is itself a leap year

so 0-2000 years has 0 odd days.

now 2001-2003 each have 1 odd day and 2004 has 2 odd days because of being a leap year and 26 days of january 2005 you take

((1+1+1)+2+26) mod 7=3

So, the date 26th January 2005 is 3rd odd day and it is a Wednesday.

Comments

sirplease explain a little more ,I don't know what odd days