MathDB

1

Part of 2010 ISI B.Math Entrance Exam

Problems(1)

I.S.I. B.Math.(Hons.) Admission test : 2010 Problem 1

Source:

4/10/2012
Prove that in each year , the 13th13^{th} day of some month occurs on a Friday .
floor functionmodular arithmeticcalendar