Question

Daca x/2=y/3=2z/5 si x+y+z=45/2 , aflati x,y si z.

Answer 1

x/2-y/3=2z/5=k
x/2=k⇒x=2k
y/3=k⇒y=3k
2z/5=k⇒z=5k/2
x+y+z=45/2
2k+3k+5k/2=45/2
5k+5k/2=45/2
(10k+5k)/2=45/2          ·2
15k=45
k=45/15
k=3
x=2k=2·3=6
y=3k=9
z=5k/2=15/2