Question

Impartiti nr.72 in parti direct proportionale cu 3,5,10

Answer 1

a+b+c=72
a/3=b/5=c/10=k=>
a=3k
b=5k     (inlocuim cele 3 in prima ecuatie)
c=10k
3k+5k+10k=72
k=4
a=3k=>a=12
b=5k=>b=20
c=10k=>c=40