Question

Daca x/2 = y/3= z/5 si x+y+z= 20, aflati numerele x,y si z.
Unde este bara aceea este supra, adica fractie.

Answer 1

x/2 = y/3= z/5 =k ;  x+y+z= 20

x=2k, y=3k, z=5k

x+y+z=2k+3k+5k=10k

10k=20, k=2

x=2·2=4

y=3·2=6

z=5·2=10

R: x=4, y=6, z=10