Question

Aflati a, b, c stiind ca sunt proportionale cu 0,5; 0,2; 0,(3) si a+b+c = 930

Answer 1

[a,b,c] d.p [0.5:0.2:0.(3)]
a/0.5=b/0.2=c/0.3(asta este 0.(3))=k
a=0.5
b=0.2
c=0.3
a+b+c=930
0.5k+0.2k+0.3k=930
k=930
a=0.5x930=465
b=0.2x930=186
c=0.3x930=279
465+186+279=930