Question

Aflati numerele pozitive X si Y inverse proportionale cu 2 si 3 stiind ca X+Y=7,5

Answer 1

x / (1/2) = y / (1/3) = 7,5 / (1/2+1/3) = 7,5 : (3+2) / 6 = (7,5*5):6 = 6,25 

x = 6,25 * 1/2 = 3,125  si   y = 6,25 * 1/3 = 2,08(3)