Category - Mathematics


[wu::riddles] Geometric In Arithmetic

Today we share our analysis of the following problem, which kindly comes to us from Colombian engineer Ariel Nunez, a former Iberoamericano Math Olympiad Bronze medalist! Problem: Given a real arithmetic progression , some terms are deleted to produce a geometric sequence with ratio . Find all possible values of . Our Solution: Define for and . …


POW: Dice Running Total

At QED there are a number of weekly exercises we participate in, to help keep our minds sharp and also just have some fun. One of them is Purdue University’s Math Problem of the Week (POW), a fun event has been going strong since the year 2000. During the spring and fall semesters of each academic year, a new problem is released, similar to those seen in …