Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

What was day of the week on 21-September-1987?

a) Saturday
b) Sunday
c) Monday
d) Tuesday

Answer: c
Explanation: Formula : (Date + Month code + No.of years + No.of leap year + Century code)/7
$$\eqalign{ & = \frac{{21 + 6 + 87 + 21 + 0}}{7} = \frac{{135}}{7} \cr & = 2 \cr & = {\text{Monday}} \cr} $$

Join The Discussion