If Today Is Tuesday, what was the day before 66 days

If today is tuesday,what was the date before 66 days ago ?
Saturday

How do we solve it ?

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

66 / 7 = 9 ( Remainder = 3)

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

Hence before 63 days Tuesday would occur again.

So we calculate before the remainder (3) , the answer is Saturday.

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

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