Question

aflati numerele x,y si z stiind ca sunt direcy proportionale 2,4, respectiv 6, iar media lor aritmetica este 24

Answer 1

x/2=y/4=z/6=(x+y+z)/(2+4+6)=72/12=6

(x+y+z)/3=24=>x+y+z=72

=>x=2x6=12
=>y=4x6=24
=>z=6x6=36