[tex] \frac{a+b+c+d+e}{5}=? [/tex] Media a 5 numere.
Stim ca: [tex] \frac{a+b}{2}=7 =\ \textgreater \ a+b=14 [/tex] si ca [tex] \frac{c+d+e}{3}=10 =\ \textgreater \ c+d+e=30 [/tex]
Ne intoarcem si inlocuim: [tex] \frac{14+30}{5}= \frac{44}{5}=8,8 [/tex] Media a 5 numere.
