Question

Fie x:y=10 y:z=2 si z:6=1. Se poate afirma ca x

Answer 1

z:6 = 1 ==> z = 6×1 = 6
y:z = 2 ==> y= 2*z = 2* 6 = 12
x:y = 10 ==> x = y*10 = 12*10= 120

deci x = 120

Answer 2

x:y=10 
y:z=2
z:6=1 ⇒ z=1 x 6    z=6
Daca z=6 , acum inlocuim mai sus: 
y:6=2 ⇒ y=2 x 6     y=12
Daca y=12 , inlocuim in prima relatie: 
x:12 = 10 ⇒ x= 10 x 12     x=120
Probe :
120:12 = 10 
12:6=2
6:6=1
R:
x=120
y=12
z=6