If Today is Friday. After 72 days which day of the week will it be?

Question

Many people would think Friday the 13th will be an unlucky day. Is it possible that there is no Friday on 13th through the whole year? How many Fridays at 13th can we have in a year at most?
Can you calculate it out?

Answer 1

72=10*7+2
Friday+2=Sunday

Answer 2

after 72 days mean on 73 th day-friday-saturday-sunday and then monday:answer monday

Answer 3

ANS: SUNDAY

1st day is friday
7th day is Thursday

7*10= 70 th day is Thursday

71st day is friday

72nd day is SATURDAY
after 72nday ----> SUNDAY