Răspuns:
Explicație pas cu pas:
(a+b+c)/3 = 72 => a+b+c = 216
b=a+50%a => b=a+[tex]\frac{1}{2}[/tex]a => b=[tex]\frac{3}{2}[/tex]a
c=b+[tex]\frac{1}{3}[/tex]b => c= [tex]\frac{4}{3}[/tex]b => c= [tex]\frac{4}{3}[/tex] * [tex]\frac{3}{2}[/tex] a => c=2a
a+b+c=216 => a+ [tex]\frac{3}{2}[/tex] a+2a=216 => 3a+[tex]\frac{3}{2}[/tex] a=216 => [tex]\frac{9}{2}[/tex] a=216 => 9a = 432 => a=48
b= [tex]\frac{3}{2}[/tex] * 48 => b= 72
c= 2a => c= 96
