If Today Is Wednesday, what will be the day after 91 days

How do we solve it ?

A week has 7 days " Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday ".

91 / 7 = 13 ( Remainder = 0)

So you can say that after multiples of 7 days, the day will repeat itself as wednesday.

Hence after 91 days Wednesday will occur again.

So we calculate after the remainder (0) , the answer is Wednesday.

Simple Logic = And whatever the remainder obtained is, add that to the day.