What day of the week will it be?

Suppose today is Tuesday. What day of the week will it be 100 days from now?

MetroEye: A week comprises of 7 days. Hence multiples of 7 will be the same day of the week i.e; 7th, 14th, 21st etc days will be the same day.

If today is Tuesday, then 7th, 14th, 21st.... etc will be Tuesdays. 

So multiple of 7 less than 100 is 98, => 98th day will also be a Tuesday.

100th day from today will be then 2 days from Tuesday which is Thursday.

So 100 days from now will be Thursday.