Răspuns:
Bună seara!
Mai jos ai rezolvarea.Succes.
{a,b,c} d.p. cu {2,3,4,} = k.
a= 2= k ------- a= 2k
b= 3 =k--------b= 3k
c= 4= k---------c= 4k
2k+3k+4k=130 ----------->> 9k= 130 ---------> 1k= 130÷9 -------1 k= 14.4
a= 2 × 14.4 ------------a= 28.8
b= 3×14.4 ------------b= 43.3
c= 4× 14.4 -----------b= 57.7.
Verificare: 28.8 + 43.4+57.7= 130
