Puteti rezolva cat doriti. Multumesc

Răspuns:
1.
a) 30+10+40+20+30+50+10=
40+60+80+10=
100+90= 190 lei
b) 30+10+40+20+30+50=
40+60+80=
100+80= 180 lei
m = 180 ÷ 6 = 30
*m=media
c) 20= x/100 ×50
20= x/2
x=20×2
x=40%
Sper ca te-am ajutat :)