MathDB
Square!

Source:

February 4, 2015

Problem Statement

Let MNPQMNPQ be a square of side length 11 , and A,B,C,DA , B , C , D points on the sides MN,NP,PQMN , NP , PQ and QMQM respectively such that ACBD=54AC \cdot BD=\frac{5}{4}. Can the set {AB,BC,CD,DA} \{AB , BC , CD , DA \} be partitioned into two subsets S1S_1 and S2S_2 of two elements each , so that each one has the sum of his elements a positive integer?