If 30 April 1983 was a Saturday, then what was the day of the week on 13 August 1989?
Answer & explanation
Correct answer: option 2
Using Code Method :-
\(\frac{Date+Month code+Year code+Last 2 digits of yr+Leap yrs till given yr}{7}\)
( Note: Remainder of the above sum will be the code of week day }
30 April 1983;
30 + 0 +0 + 83 + 20 = 133
remainder of \(\frac{133}{7}\) = 0
Therefore, the code of 0 is Saturday
Similarly,
13 Aug 1989;
13 + 03 + 0 + 89 + 22 = 127
remainder of \(\frac{127}{7}\) = 01
Therefore, the code of 01 is Sunday