Salut !
Rezolvare :
(x,y,z) d.p {10,13,15) => x=10k , y=13k , z=15k
z -cel mai mare si x-cel mai mic
z + x = 75 => 15k+10k=75 => 25k=75
k=75/25
k=3
x=10k=> 10 x 3=> x=30
y=13k=>13 x 3 => y=39
z=15k=>15 x 3=> z=45
Numerele x,y,z sunt in ordine egale cu : 30,39,45 .