Question

nr { a,b,c } d.p { 2,3,7 };iar media lor aritmetica este 360. Aflati cele 3 nr.

Answer 1

a/2=b/3=c/7=k
a=2k
b=3k
c=7k
(2k+3k+7k)/3=360
2k+3k+7k=1080
12k=1080
k=90
=>a=180
=>b=270
=>c=630

Verificare :
(180+270+630)/3 =? 360
1080/3 =? 360
360=360 A