• Mpendwa mteja, tunakusihi jitahidi kuosha mikono kwa maji safi na sabuni mara kwa mara na kwa siku chache hizi jaribu kutulia nyumbani kuepusha maambukizi ya #CORONAVIRUS

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utafiti

utafiti

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utafiti

utafiti

JF-Expert Member
Joined Jul 18, 2013
12,798 0
The first three weekdays of any 31-day month are repeated 5 times within that month. So, any month that has 31 days and begins on a Friday has 5 Fridays, 5 Saturdays, and 5 Sundays. And this happens much more often than every 823years.
 

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