MathDB
Max. value of 2m+7n

Source:

August 29, 2010
functionalgebra unsolvedalgebra

Problem Statement

Find the maximum value that the quantity 2m+7n2m+7n can have such that there exist distinct positive integers xi (1im),yj (1jn)x_i \ (1 \leq i \leq m), y_j \ (1 \leq j \leq n) such that the xix_i's are even, the yjy_j's are odd, and i=1mxi+j=1nyj=1986.\sum_{i=1}^{m} x_i +\sum_{j=1}^{n} y_j=1986.